var pmb = {"page_per_post":1,"max_image_size":"800"};// This is some Prince HTML-to-PDF converter Javascript. It's not executed by the browser, but during the // Prince HTML-to-PDF conversion process. See https://www.princexml.com/doc/javascript/ // turn on box tracking API Prince.trackBoxes = true; // once the first pass of rendering is finished, let's make the "pmb-dynamic-resize" images take up the rest of the // page they're on. Prince will then need to re-render. Prince.registerPostLayoutFunc(function() { pmb_continue_image_resizing(); pmb_extend_to_bottom(); }); /** * Resizes images in blocks with CSS class "pmb-dynamic-resize". * Gutenberg image blocks with no alignment: the top-level block has the class and is the figure. * But if they're floating, the top-level block is a div which contains the figure (which floats). * The image's initial height effectively becomes the minimum height. The maximum height */ function pmb_continue_image_resizing(){ var resized_something = false; // To make this more efficient, grab the first image from each section followed by a pagebreak if(pmb.page_per_post){ var dynamic_resize_blocks = document.getElementsByClassName('pmb-section'); for(var i=0; i<dynamic_resize_blocks.length; i++){ var resized_element = pmb_resize_an_image_inside(dynamic_resize_blocks[i]); if(resized_element){ resized_something = true; } } } else { if(pmb_resize_an_image_inside(document)){ resized_something = true; } } if(resized_something){ Prince.registerPostLayoutFunc(pmb_continue_image_resizing); } } /** * Grabs a "pmb-dynamic-resize" element inside here and resizes it and returns it. * (If none are found, returns null) * @param element * @return boolean */ function pmb_resize_an_image_inside(element){ var dynamic_resize_blocks = element.getElementsByClassName("pmb-dynamic-resize"); // just grab one block at a time because how the first image is resized will affect the subsequentn ones // and subsequent ones' telemetry is only updated after re-rendering. So do one, then get Prince to re-render, then // do another... etc. var a_dynamic_resize_block = dynamic_resize_blocks[0]; if(typeof a_dynamic_resize_block === 'undefined'){ return null; } // when images are floating, the block had a div (with no height) because its contents are floating // in that case we want to resize the figure inside the block. So check if there's a figure inside it var figure_is_floating = true; var figure_to_resize = a_dynamic_resize_block.getElementsByTagName("figure")[0]; if( typeof figure_to_resize === 'undefined'){ // There's no figure inside it. The figure is the top-level element in the block. figure_to_resize = a_dynamic_resize_block; figure_is_floating = false; } // For floating images we need to also set the block's width (I can't figure out how to get CSS to set the width automatically) // so for that we need to figure out how much the image inside the figure got resized (non-trivial if there's a caption). var figure_image = figure_to_resize.getElementsByTagName('img')[0]; // determine the caption's height var figure_caption = figure_to_resize.getElementsByTagName('figcaption')[0]; var caption_height = 0; if(typeof(figure_caption) !== 'undefined'){ var caption_box = figure_caption.getPrinceBoxes()[0]; caption_height = caption_box.marginTop + caption_box.h + caption_box.marginBottom; } // If we can't find an image to resize, there's nothing to resize (which is weird but somehow happens?) if(typeof(figure_image) !== 'undefined') { var figure_image_box = figure_image.getPrinceBoxes()[0]; var figure_image_height = figure_image_box.h; var figure_box = figure_to_resize.getPrinceBoxes()[0]; var page_box = PDF.pages[figure_box.pageNum - 1]; // don't forget to take the footnote height into account var footnotes_height = 0; for (var index in page_box['children']) { var box_on_page = page_box['children'][index]; if (box_on_page['type'] === 'FOOTNOTES') { footnotes_height = box_on_page['h']; } } var max_allowable_height = pmb_px_to_pts(pmb.max_image_size); // page_box.y is the distance from the top of the page to the bottom margin; // page_box.h is the distance from the bottom margin to the top margin // figure_box.y is the distance from the top of the page to the bottom-left corner of the figure // see https://www.princexml.com/forum/post/23543/attachment/img-fill.html var top_margin = page_box.y - page_box.h; var remaining_vertical_space = figure_box.y - top_margin - 10 - footnotes_height; var max_height_because_of_max_width = page_box.w * figure_image_box.h / figure_image_box.w + caption_height; // also gather the maximum heights from the original image var max_height_from_resolution_y_of_image = 100000; if('height' in figure_image.attributes){ max_height_from_resolution_y_of_image = pmb_px_to_pts(figure_image.attributes['height'].value); } // resolution_height px max_height pts // ------------------ = -------------- => max_height = max_width pts * original_height px / original_width px // resolution_width px max_width pts var max_height_from_resolution_x_of_image = 100000; if('width' in figure_image.attributes && 'height' in figure_image.attributes){ max_height_from_resolution_x_of_image = (page_box.w * figure_image.attributes['height'].value / figure_image.attributes['width'].value) + caption_height; } Log.info('IMG:' + figure_image.attributes['src'].value); Log.info(' page width:' + page_box.w); Log.info(' pmb.max_image_size' + pmb.max_image_size); Log.info(' remaining_vertical_space ' + remaining_vertical_space + '(distance to bottom margin ' + page_box.y + ', figure bottom at ' + figure_box.y + ')'); Log.info(' max_height_because_of_max_width' + max_height_because_of_max_width); Log.info(' max_height_from_resolution_y_of_image' + max_height_from_resolution_y_of_image); Log.info(' max_height_from_resolution_x_of_image' + max_height_from_resolution_x_of_image); Log.info(' caption height ' + caption_height); // put a limit on how big the image can be // use the design's maximum image size, which was passed from PHP var new_figure_height = Math.min( max_allowable_height, remaining_vertical_space, max_height_because_of_max_width, max_height_from_resolution_y_of_image, max_height_from_resolution_x_of_image ); Log.info('New figure size is ' + new_figure_height); var max_class = 'pmb-dynamic-resize-limited-by-unknown'; switch(new_figure_height){ case max_allowable_height: max_class = 'pmb-dynamic-resize-limited-by-max_allowable_height'; break; case remaining_vertical_space: max_class = 'pmb-dynamic-resize-limited-by-remaining_vertical_space'; break; case max_height_because_of_max_width: max_class = 'pmb-dynamic-resize-limited-by-max_height_because_of_max_width'; break; case max_height_from_resolution_y_of_image: max_class = 'pmb-dynamic-resize-limited-by-max_height_from_resolution_y_of_image'; break; case max_height_from_resolution_x_of_image: max_class = 'pmb-dynamic-resize-limited-by-max_height_from_resolution_x_of_image'; break; } Log.info('max height css class:'+ max_class); // Resize the block figure_to_resize.style.height = new_figure_height + "pt"; if (figure_is_floating) { // Used some grade 12 math to figure out this equation. var new_image_height = new_figure_height - figure_box.h + figure_image_height; var resize_ratio = new_image_height / figure_image_height; figure_to_resize.style.width = (figure_box.w * resize_ratio) + 'pt'; } } // Change the class so we know we don't try to resize this block again a_dynamic_resize_block.className = a_dynamic_resize_block.className.replace(/pmb-dynamic-resize/g, 'pmb-dynamic-resized') + ' ' + max_class; return a_dynamic_resize_block; } function pmb_extend_to_bottom(){ Log.info('pmb_extend_to_bottom'); // find all elements that should extend to bottom var dynamic_resize_elements = document.getElementsByClassName('pmb-fill-remaining-height'); if(dynamic_resize_elements.length){ Log.info('found something to resize'); // find their distance to the bottom of the page var element = dynamic_resize_elements[0]; var element_box = element.getPrinceBoxes()[0]; var page_box = PDF.pages[element_box.pageNum - 1]; Log.info('element to resize'); pmb_print_props(element_box, 'element to resize box'); pmb_print_props(page_box, 'page box'); var remaining_vertical_space = element_box.y - (page_box.y - page_box.h) - 50; Log.info('resize to ' + remaining_vertical_space); // make the element fill that vertical height element.style.height = remaining_vertical_space + "pt"; // remember not to do this one again element.className = element.className.replace(/pmb-fill-remaining-height/g, 'pmb-filled-remaining-height'); // redraw and look again Prince.registerPostLayoutFunc(pmb_extend_to_bottom); } else { Log.info('nothing more to do'); } } /** * From https://www.princexml.com/doc/cookbook/#how-and-where-is-my-box * @param pixels * @returns {number} */ function pmb_px_to_pts(pixels){ return pixels * (72 / 96); } /** * A debugging function, especially useful for figuring out what's on these "box" objects * @param obj * @param label */ function pmb_print_props(obj, label){ Log.info(label); for(var prop in obj){ var val = obj[prop]; Log.info(prop + ':' + val); } }
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March 28, 2020
var pmb = {"page_per_post":1,"max_image_size":"800"};// This is some Prince HTML-to-PDF converter Javascript. It's not executed by the browser, but during the // Prince HTML-to-PDF conversion process. See https://www.princexml.com/doc/javascript/ // turn on box tracking API Prince.trackBoxes = true; // once the first pass of rendering is finished, let's make the "pmb-dynamic-resize" images take up the rest of the // page they're on. Prince will then need to re-render. Prince.registerPostLayoutFunc(function() { pmb_continue_image_resizing(); pmb_extend_to_bottom(); }); /** * Resizes images in blocks with CSS class "pmb-dynamic-resize". * Gutenberg image blocks with no alignment: the top-level block has the class and is the figure. * But if they're floating, the top-level block is a div which contains the figure (which floats). * The image's initial height effectively becomes the minimum height. The maximum height */ function pmb_continue_image_resizing(){ var resized_something = false; // To make this more efficient, grab the first image from each section followed by a pagebreak if(pmb.page_per_post){ var dynamic_resize_blocks = document.getElementsByClassName('pmb-section'); for(var i=0; i<dynamic_resize_blocks.length; i++){ var resized_element = pmb_resize_an_image_inside(dynamic_resize_blocks[i]); if(resized_element){ resized_something = true; } } } else { if(pmb_resize_an_image_inside(document)){ resized_something = true; } } if(resized_something){ Prince.registerPostLayoutFunc(pmb_continue_image_resizing); } } /** * Grabs a "pmb-dynamic-resize" element inside here and resizes it and returns it. * (If none are found, returns null) * @param element * @return boolean */ function pmb_resize_an_image_inside(element){ var dynamic_resize_blocks = element.getElementsByClassName("pmb-dynamic-resize"); // just grab one block at a time because how the first image is resized will affect the subsequentn ones // and subsequent ones' telemetry is only updated after re-rendering. So do one, then get Prince to re-render, then // do another... etc. var a_dynamic_resize_block = dynamic_resize_blocks[0]; if(typeof a_dynamic_resize_block === 'undefined'){ return null; } // when images are floating, the block had a div (with no height) because its contents are floating // in that case we want to resize the figure inside the block. So check if there's a figure inside it var figure_is_floating = true; var figure_to_resize = a_dynamic_resize_block.getElementsByTagName("figure")[0]; if( typeof figure_to_resize === 'undefined'){ // There's no figure inside it. The figure is the top-level element in the block. figure_to_resize = a_dynamic_resize_block; figure_is_floating = false; } // For floating images we need to also set the block's width (I can't figure out how to get CSS to set the width automatically) // so for that we need to figure out how much the image inside the figure got resized (non-trivial if there's a caption). var figure_image = figure_to_resize.getElementsByTagName('img')[0]; // determine the caption's height var figure_caption = figure_to_resize.getElementsByTagName('figcaption')[0]; var caption_height = 0; if(typeof(figure_caption) !== 'undefined'){ var caption_box = figure_caption.getPrinceBoxes()[0]; caption_height = caption_box.marginTop + caption_box.h + caption_box.marginBottom; } // If we can't find an image to resize, there's nothing to resize (which is weird but somehow happens?) if(typeof(figure_image) !== 'undefined') { var figure_image_box = figure_image.getPrinceBoxes()[0]; var figure_image_height = figure_image_box.h; var figure_box = figure_to_resize.getPrinceBoxes()[0]; var page_box = PDF.pages[figure_box.pageNum - 1]; // don't forget to take the footnote height into account var footnotes_height = 0; for (var index in page_box['children']) { var box_on_page = page_box['children'][index]; if (box_on_page['type'] === 'FOOTNOTES') { footnotes_height = box_on_page['h']; } } var max_allowable_height = pmb_px_to_pts(pmb.max_image_size); // page_box.y is the distance from the top of the page to the bottom margin; // page_box.h is the distance from the bottom margin to the top margin // figure_box.y is the distance from the top of the page to the bottom-left corner of the figure // see https://www.princexml.com/forum/post/23543/attachment/img-fill.html var top_margin = page_box.y - page_box.h; var remaining_vertical_space = figure_box.y - top_margin - 10 - footnotes_height; var max_height_because_of_max_width = page_box.w * figure_image_box.h / figure_image_box.w + caption_height; // also gather the maximum heights from the original image var max_height_from_resolution_y_of_image = 100000; if('height' in figure_image.attributes){ max_height_from_resolution_y_of_image = pmb_px_to_pts(figure_image.attributes['height'].value); } // resolution_height px max_height pts // ------------------ = -------------- => max_height = max_width pts * original_height px / original_width px // resolution_width px max_width pts var max_height_from_resolution_x_of_image = 100000; if('width' in figure_image.attributes && 'height' in figure_image.attributes){ max_height_from_resolution_x_of_image = (page_box.w * figure_image.attributes['height'].value / figure_image.attributes['width'].value) + caption_height; } Log.info('IMG:' + figure_image.attributes['src'].value); Log.info(' page width:' + page_box.w); Log.info(' pmb.max_image_size' + pmb.max_image_size); Log.info(' remaining_vertical_space ' + remaining_vertical_space + '(distance to bottom margin ' + page_box.y + ', figure bottom at ' + figure_box.y + ')'); Log.info(' max_height_because_of_max_width' + max_height_because_of_max_width); Log.info(' max_height_from_resolution_y_of_image' + max_height_from_resolution_y_of_image); Log.info(' max_height_from_resolution_x_of_image' + max_height_from_resolution_x_of_image); Log.info(' caption height ' + caption_height); // put a limit on how big the image can be // use the design's maximum image size, which was passed from PHP var new_figure_height = Math.min( max_allowable_height, remaining_vertical_space, max_height_because_of_max_width, max_height_from_resolution_y_of_image, max_height_from_resolution_x_of_image ); Log.info('New figure size is ' + new_figure_height); var max_class = 'pmb-dynamic-resize-limited-by-unknown'; switch(new_figure_height){ case max_allowable_height: max_class = 'pmb-dynamic-resize-limited-by-max_allowable_height'; break; case remaining_vertical_space: max_class = 'pmb-dynamic-resize-limited-by-remaining_vertical_space'; break; case max_height_because_of_max_width: max_class = 'pmb-dynamic-resize-limited-by-max_height_because_of_max_width'; break; case max_height_from_resolution_y_of_image: max_class = 'pmb-dynamic-resize-limited-by-max_height_from_resolution_y_of_image'; break; case max_height_from_resolution_x_of_image: max_class = 'pmb-dynamic-resize-limited-by-max_height_from_resolution_x_of_image'; break; } Log.info('max height css class:'+ max_class); // Resize the block figure_to_resize.style.height = new_figure_height + "pt"; if (figure_is_floating) { // Used some grade 12 math to figure out this equation. var new_image_height = new_figure_height - figure_box.h + figure_image_height; var resize_ratio = new_image_height / figure_image_height; figure_to_resize.style.width = (figure_box.w * resize_ratio) + 'pt'; } } // Change the class so we know we don't try to resize this block again a_dynamic_resize_block.className = a_dynamic_resize_block.className.replace(/pmb-dynamic-resize/g, 'pmb-dynamic-resized') + ' ' + max_class; return a_dynamic_resize_block; } function pmb_extend_to_bottom(){ Log.info('pmb_extend_to_bottom'); // find all elements that should extend to bottom var dynamic_resize_elements = document.getElementsByClassName('pmb-fill-remaining-height'); if(dynamic_resize_elements.length){ Log.info('found something to resize'); // find their distance to the bottom of the page var element = dynamic_resize_elements[0]; var element_box = element.getPrinceBoxes()[0]; var page_box = PDF.pages[element_box.pageNum - 1]; Log.info('element to resize'); pmb_print_props(element_box, 'element to resize box'); pmb_print_props(page_box, 'page box'); var remaining_vertical_space = element_box.y - (page_box.y - page_box.h) - 50; Log.info('resize to ' + remaining_vertical_space); // make the element fill that vertical height element.style.height = remaining_vertical_space + "pt"; // remember not to do this one again element.className = element.className.replace(/pmb-fill-remaining-height/g, 'pmb-filled-remaining-height'); // redraw and look again Prince.registerPostLayoutFunc(pmb_extend_to_bottom); } else { Log.info('nothing more to do'); } } /** * From https://www.princexml.com/doc/cookbook/#how-and-where-is-my-box * @param pixels * @returns {number} */ function pmb_px_to_pts(pixels){ return pixels * (72 / 96); } /** * A debugging function, especially useful for figuring out what's on these "box" objects * @param obj * @param label */ function pmb_print_props(obj, label){ Log.info(label); for(var prop in obj){ var val = obj[prop]; Log.info(prop + ':' + val); } } var pmb = {"page_per_post":1,"max_image_size":"800"};// This is some Prince HTML-to-PDF converter Javascript. It's not executed by the browser, but during the // Prince HTML-to-PDF conversion process. See https://www.princexml.com/doc/javascript/ // turn on box tracking API Prince.trackBoxes = true; // once the first pass of rendering is finished, let's make the "pmb-dynamic-resize" images take up the rest of the // page they're on. Prince will then need to re-render. Prince.registerPostLayoutFunc(function() { pmb_continue_image_resizing(); pmb_extend_to_bottom(); }); /** * Resizes images in blocks with CSS class "pmb-dynamic-resize". * Gutenberg image blocks with no alignment: the top-level block has the class and is the figure. * But if they're floating, the top-level block is a div which contains the figure (which floats). * The image's initial height effectively becomes the minimum height. The maximum height */ function pmb_continue_image_resizing(){ var resized_something = false; // To make this more efficient, grab the first image from each section followed by a pagebreak if(pmb.page_per_post){ var dynamic_resize_blocks = document.getElementsByClassName('pmb-section'); for(var i=0; i<dynamic_resize_blocks.length; i++){ var resized_element = pmb_resize_an_image_inside(dynamic_resize_blocks[i]); if(resized_element){ resized_something = true; } } } else { if(pmb_resize_an_image_inside(document)){ resized_something = true; } } if(resized_something){ Prince.registerPostLayoutFunc(pmb_continue_image_resizing); } } /** * Grabs a "pmb-dynamic-resize" element inside here and resizes it and returns it. * (If none are found, returns null) * @param element * @return boolean */ function pmb_resize_an_image_inside(element){ var dynamic_resize_blocks = element.getElementsByClassName("pmb-dynamic-resize"); // just grab one block at a time because how the first image is resized will affect the subsequentn ones // and subsequent ones' telemetry is only updated after re-rendering. So do one, then get Prince to re-render, then // do another... etc. var a_dynamic_resize_block = dynamic_resize_blocks[0]; if(typeof a_dynamic_resize_block === 'undefined'){ return null; } // when images are floating, the block had a div (with no height) because its contents are floating // in that case we want to resize the figure inside the block. So check if there's a figure inside it var figure_is_floating = true; var figure_to_resize = a_dynamic_resize_block.getElementsByTagName("figure")[0]; if( typeof figure_to_resize === 'undefined'){ // There's no figure inside it. The figure is the top-level element in the block. figure_to_resize = a_dynamic_resize_block; figure_is_floating = false; } // For floating images we need to also set the block's width (I can't figure out how to get CSS to set the width automatically) // so for that we need to figure out how much the image inside the figure got resized (non-trivial if there's a caption). var figure_image = figure_to_resize.getElementsByTagName('img')[0]; // determine the caption's height var figure_caption = figure_to_resize.getElementsByTagName('figcaption')[0]; var caption_height = 0; if(typeof(figure_caption) !== 'undefined'){ var caption_box = figure_caption.getPrinceBoxes()[0]; caption_height = caption_box.marginTop + caption_box.h + caption_box.marginBottom; } // If we can't find an image to resize, there's nothing to resize (which is weird but somehow happens?) if(typeof(figure_image) !== 'undefined') { var figure_image_box = figure_image.getPrinceBoxes()[0]; var figure_image_height = figure_image_box.h; var figure_box = figure_to_resize.getPrinceBoxes()[0]; var page_box = PDF.pages[figure_box.pageNum - 1]; // don't forget to take the footnote height into account var footnotes_height = 0; for (var index in page_box['children']) { var box_on_page = page_box['children'][index]; if (box_on_page['type'] === 'FOOTNOTES') { footnotes_height = box_on_page['h']; } } var max_allowable_height = pmb_px_to_pts(pmb.max_image_size); // page_box.y is the distance from the top of the page to the bottom margin; // page_box.h is the distance from the bottom margin to the top margin // figure_box.y is the distance from the top of the page to the bottom-left corner of the figure // see https://www.princexml.com/forum/post/23543/attachment/img-fill.html var top_margin = page_box.y - page_box.h; var remaining_vertical_space = figure_box.y - top_margin - 10 - footnotes_height; var max_height_because_of_max_width = page_box.w * figure_image_box.h / figure_image_box.w + caption_height; // also gather the maximum heights from the original image var max_height_from_resolution_y_of_image = 100000; if('height' in figure_image.attributes){ max_height_from_resolution_y_of_image = pmb_px_to_pts(figure_image.attributes['height'].value); } // resolution_height px max_height pts // ------------------ = -------------- => max_height = max_width pts * original_height px / original_width px // resolution_width px max_width pts var max_height_from_resolution_x_of_image = 100000; if('width' in figure_image.attributes && 'height' in figure_image.attributes){ max_height_from_resolution_x_of_image = (page_box.w * figure_image.attributes['height'].value / figure_image.attributes['width'].value) + caption_height; } Log.info('IMG:' + figure_image.attributes['src'].value); Log.info(' page width:' + page_box.w); Log.info(' pmb.max_image_size' + pmb.max_image_size); Log.info(' remaining_vertical_space ' + remaining_vertical_space + '(distance to bottom margin ' + page_box.y + ', figure bottom at ' + figure_box.y + ')'); Log.info(' max_height_because_of_max_width' + max_height_because_of_max_width); Log.info(' max_height_from_resolution_y_of_image' + max_height_from_resolution_y_of_image); Log.info(' max_height_from_resolution_x_of_image' + max_height_from_resolution_x_of_image); Log.info(' caption height ' + caption_height); // put a limit on how big the image can be // use the design's maximum image size, which was passed from PHP var new_figure_height = Math.min( max_allowable_height, remaining_vertical_space, max_height_because_of_max_width, max_height_from_resolution_y_of_image, max_height_from_resolution_x_of_image ); Log.info('New figure size is ' + new_figure_height); var max_class = 'pmb-dynamic-resize-limited-by-unknown'; switch(new_figure_height){ case max_allowable_height: max_class = 'pmb-dynamic-resize-limited-by-max_allowable_height'; break; case remaining_vertical_space: max_class = 'pmb-dynamic-resize-limited-by-remaining_vertical_space'; break; case max_height_because_of_max_width: max_class = 'pmb-dynamic-resize-limited-by-max_height_because_of_max_width'; break; case max_height_from_resolution_y_of_image: max_class = 'pmb-dynamic-resize-limited-by-max_height_from_resolution_y_of_image'; break; case max_height_from_resolution_x_of_image: max_class = 'pmb-dynamic-resize-limited-by-max_height_from_resolution_x_of_image'; break; } Log.info('max height css class:'+ max_class); // Resize the block figure_to_resize.style.height = new_figure_height + "pt"; if (figure_is_floating) { // Used some grade 12 math to figure out this equation. var new_image_height = new_figure_height - figure_box.h + figure_image_height; var resize_ratio = new_image_height / figure_image_height; figure_to_resize.style.width = (figure_box.w * resize_ratio) + 'pt'; } } // Change the class so we know we don't try to resize this block again a_dynamic_resize_block.className = a_dynamic_resize_block.className.replace(/pmb-dynamic-resize/g, 'pmb-dynamic-resized') + ' ' + max_class; return a_dynamic_resize_block; } function pmb_extend_to_bottom(){ Log.info('pmb_extend_to_bottom'); // find all elements that should extend to bottom var dynamic_resize_elements = document.getElementsByClassName('pmb-fill-remaining-height'); if(dynamic_resize_elements.length){ Log.info('found something to resize'); // find their distance to the bottom of the page var element = dynamic_resize_elements[0]; var element_box = element.getPrinceBoxes()[0]; var page_box = PDF.pages[element_box.pageNum - 1]; Log.info('element to resize'); pmb_print_props(element_box, 'element to resize box'); pmb_print_props(page_box, 'page box'); var remaining_vertical_space = element_box.y - (page_box.y - page_box.h) - 50; Log.info('resize to ' + remaining_vertical_space); // make the element fill that vertical height element.style.height = remaining_vertical_space + "pt"; // remember not to do this one again element.className = element.className.replace(/pmb-fill-remaining-height/g, 'pmb-filled-remaining-height'); // redraw and look again Prince.registerPostLayoutFunc(pmb_extend_to_bottom); } else { Log.info('nothing more to do'); } } /** * From https://www.princexml.com/doc/cookbook/#how-and-where-is-my-box * @param pixels * @returns {number} */ function pmb_px_to_pts(pixels){ return pixels * (72 / 96); } /** * A debugging function, especially useful for figuring out what's on these "box" objects * @param obj * @param label */ function pmb_print_props(obj, label){ Log.info(label); for(var prop in obj){ var val = obj[prop]; Log.info(prop + ':' + val); } } var pmb = {"page_per_post":1,"max_image_size":"800"};// This is some Prince HTML-to-PDF converter Javascript. It's not executed by the browser, but during the // Prince HTML-to-PDF conversion process. See https://www.princexml.com/doc/javascript/ // turn on box tracking API Prince.trackBoxes = true; // once the first pass of rendering is finished, let's make the "pmb-dynamic-resize" images take up the rest of the // page they're on. Prince will then need to re-render. Prince.registerPostLayoutFunc(function() { pmb_continue_image_resizing(); pmb_extend_to_bottom(); }); /** * Resizes images in blocks with CSS class "pmb-dynamic-resize". * Gutenberg image blocks with no alignment: the top-level block has the class and is the figure. * But if they're floating, the top-level block is a div which contains the figure (which floats). * The image's initial height effectively becomes the minimum height. The maximum height */ function pmb_continue_image_resizing(){ var resized_something = false; // To make this more efficient, grab the first image from each section followed by a pagebreak if(pmb.page_per_post){ var dynamic_resize_blocks = document.getElementsByClassName('pmb-section'); for(var i=0; i<dynamic_resize_blocks.length; i++){ var resized_element = pmb_resize_an_image_inside(dynamic_resize_blocks[i]); if(resized_element){ resized_something = true; } } } else { if(pmb_resize_an_image_inside(document)){ resized_something = true; } } if(resized_something){ Prince.registerPostLayoutFunc(pmb_continue_image_resizing); } } /** * Grabs a "pmb-dynamic-resize" element inside here and resizes it and returns it. * (If none are found, returns null) * @param element * @return boolean */ function pmb_resize_an_image_inside(element){ var dynamic_resize_blocks = element.getElementsByClassName("pmb-dynamic-resize"); // just grab one block at a time because how the first image is resized will affect the subsequentn ones // and subsequent ones' telemetry is only updated after re-rendering. So do one, then get Prince to re-render, then // do another... etc. var a_dynamic_resize_block = dynamic_resize_blocks[0]; if(typeof a_dynamic_resize_block === 'undefined'){ return null; } // when images are floating, the block had a div (with no height) because its contents are floating // in that case we want to resize the figure inside the block. So check if there's a figure inside it var figure_is_floating = true; var figure_to_resize = a_dynamic_resize_block.getElementsByTagName("figure")[0]; if( typeof figure_to_resize === 'undefined'){ // There's no figure inside it. The figure is the top-level element in the block. figure_to_resize = a_dynamic_resize_block; figure_is_floating = false; } // For floating images we need to also set the block's width (I can't figure out how to get CSS to set the width automatically) // so for that we need to figure out how much the image inside the figure got resized (non-trivial if there's a caption). var figure_image = figure_to_resize.getElementsByTagName('img')[0]; // determine the caption's height var figure_caption = figure_to_resize.getElementsByTagName('figcaption')[0]; var caption_height = 0; if(typeof(figure_caption) !== 'undefined'){ var caption_box = figure_caption.getPrinceBoxes()[0]; caption_height = caption_box.marginTop + caption_box.h + caption_box.marginBottom; } // If we can't find an image to resize, there's nothing to resize (which is weird but somehow happens?) if(typeof(figure_image) !== 'undefined') { var figure_image_box = figure_image.getPrinceBoxes()[0]; var figure_image_height = figure_image_box.h; var figure_box = figure_to_resize.getPrinceBoxes()[0]; var page_box = PDF.pages[figure_box.pageNum - 1]; // don't forget to take the footnote height into account var footnotes_height = 0; for (var index in page_box['children']) { var box_on_page = page_box['children'][index]; if (box_on_page['type'] === 'FOOTNOTES') { footnotes_height = box_on_page['h']; } } var max_allowable_height = pmb_px_to_pts(pmb.max_image_size); // page_box.y is the distance from the top of the page to the bottom margin; // page_box.h is the distance from the bottom margin to the top margin // figure_box.y is the distance from the top of the page to the bottom-left corner of the figure // see https://www.princexml.com/forum/post/23543/attachment/img-fill.html var top_margin = page_box.y - page_box.h; var remaining_vertical_space = figure_box.y - top_margin - 10 - footnotes_height; var max_height_because_of_max_width = page_box.w * figure_image_box.h / figure_image_box.w + caption_height; // also gather the maximum heights from the original image var max_height_from_resolution_y_of_image = 100000; if('height' in figure_image.attributes){ max_height_from_resolution_y_of_image = pmb_px_to_pts(figure_image.attributes['height'].value); } // resolution_height px max_height pts // ------------------ = -------------- => max_height = max_width pts * original_height px / original_width px // resolution_width px max_width pts var max_height_from_resolution_x_of_image = 100000; if('width' in figure_image.attributes && 'height' in figure_image.attributes){ max_height_from_resolution_x_of_image = (page_box.w * figure_image.attributes['height'].value / figure_image.attributes['width'].value) + caption_height; } Log.info('IMG:' + figure_image.attributes['src'].value); Log.info(' page width:' + page_box.w); Log.info(' pmb.max_image_size' + pmb.max_image_size); Log.info(' remaining_vertical_space ' + remaining_vertical_space + '(distance to bottom margin ' + page_box.y + ', figure bottom at ' + figure_box.y + ')'); Log.info(' max_height_because_of_max_width' + max_height_because_of_max_width); Log.info(' max_height_from_resolution_y_of_image' + max_height_from_resolution_y_of_image); Log.info(' max_height_from_resolution_x_of_image' + max_height_from_resolution_x_of_image); Log.info(' caption height ' + caption_height); // put a limit on how big the image can be // use the design's maximum image size, which was passed from PHP var new_figure_height = Math.min( max_allowable_height, remaining_vertical_space, max_height_because_of_max_width, max_height_from_resolution_y_of_image, max_height_from_resolution_x_of_image ); Log.info('New figure size is ' + new_figure_height); var max_class = 'pmb-dynamic-resize-limited-by-unknown'; switch(new_figure_height){ case max_allowable_height: max_class = 'pmb-dynamic-resize-limited-by-max_allowable_height'; break; case remaining_vertical_space: max_class = 'pmb-dynamic-resize-limited-by-remaining_vertical_space'; break; case max_height_because_of_max_width: max_class = 'pmb-dynamic-resize-limited-by-max_height_because_of_max_width'; break; case max_height_from_resolution_y_of_image: max_class = 'pmb-dynamic-resize-limited-by-max_height_from_resolution_y_of_image'; break; case max_height_from_resolution_x_of_image: max_class = 'pmb-dynamic-resize-limited-by-max_height_from_resolution_x_of_image'; break; } Log.info('max height css class:'+ max_class); // Resize the block figure_to_resize.style.height = new_figure_height + "pt"; if (figure_is_floating) { // Used some grade 12 math to figure out this equation. var new_image_height = new_figure_height - figure_box.h + figure_image_height; var resize_ratio = new_image_height / figure_image_height; figure_to_resize.style.width = (figure_box.w * resize_ratio) + 'pt'; } } // Change the class so we know we don't try to resize this block again a_dynamic_resize_block.className = a_dynamic_resize_block.className.replace(/pmb-dynamic-resize/g, 'pmb-dynamic-resized') + ' ' + max_class; return a_dynamic_resize_block; } function pmb_extend_to_bottom(){ Log.info('pmb_extend_to_bottom'); // find all elements that should extend to bottom var dynamic_resize_elements = document.getElementsByClassName('pmb-fill-remaining-height'); if(dynamic_resize_elements.length){ Log.info('found something to resize'); // find their distance to the bottom of the page var element = dynamic_resize_elements[0]; var element_box = element.getPrinceBoxes()[0]; var page_box = PDF.pages[element_box.pageNum - 1]; Log.info('element to resize'); pmb_print_props(element_box, 'element to resize box'); pmb_print_props(page_box, 'page box'); var remaining_vertical_space = element_box.y - (page_box.y - page_box.h) - 50; Log.info('resize to ' + remaining_vertical_space); // make the element fill that vertical height element.style.height = remaining_vertical_space + "pt"; // remember not to do this one again element.className = element.className.replace(/pmb-fill-remaining-height/g, 'pmb-filled-remaining-height'); // redraw and look again Prince.registerPostLayoutFunc(pmb_extend_to_bottom); } else { Log.info('nothing more to do'); } } /** * From https://www.princexml.com/doc/cookbook/#how-and-where-is-my-box * @param pixels * @returns {number} */ function pmb_px_to_pts(pixels){ return pixels * (72 / 96); } /** * A debugging function, especially useful for figuring out what's on these "box" objects * @param obj * @param label */ function pmb_print_props(obj, label){ Log.info(label); for(var prop in obj){ var val = obj[prop]; Log.info(prop + ':' + val); } } var pmb = {"page_per_post":1,"max_image_size":"800"};// This is some Prince HTML-to-PDF converter Javascript. It's not executed by the browser, but during the // Prince HTML-to-PDF conversion process. See https://www.princexml.com/doc/javascript/ // turn on box tracking API Prince.trackBoxes = true; // once the first pass of rendering is finished, let's make the "pmb-dynamic-resize" images take up the rest of the // page they're on. Prince will then need to re-render. Prince.registerPostLayoutFunc(function() { pmb_continue_image_resizing(); pmb_extend_to_bottom(); }); /** * Resizes images in blocks with CSS class "pmb-dynamic-resize". * Gutenberg image blocks with no alignment: the top-level block has the class and is the figure. * But if they're floating, the top-level block is a div which contains the figure (which floats). * The image's initial height effectively becomes the minimum height. The maximum height */ function pmb_continue_image_resizing(){ var resized_something = false; // To make this more efficient, grab the first image from each section followed by a pagebreak if(pmb.page_per_post){ var dynamic_resize_blocks = document.getElementsByClassName('pmb-section'); for(var i=0; i<dynamic_resize_blocks.length; i++){ var resized_element = pmb_resize_an_image_inside(dynamic_resize_blocks[i]); if(resized_element){ resized_something = true; } } } else { if(pmb_resize_an_image_inside(document)){ resized_something = true; } } if(resized_something){ Prince.registerPostLayoutFunc(pmb_continue_image_resizing); } } /** * Grabs a "pmb-dynamic-resize" element inside here and resizes it and returns it. * (If none are found, returns null) * @param element * @return boolean */ function pmb_resize_an_image_inside(element){ var dynamic_resize_blocks = element.getElementsByClassName("pmb-dynamic-resize"); // just grab one block at a time because how the first image is resized will affect the subsequentn ones // and subsequent ones' telemetry is only updated after re-rendering. So do one, then get Prince to re-render, then // do another... etc. var a_dynamic_resize_block = dynamic_resize_blocks[0]; if(typeof a_dynamic_resize_block === 'undefined'){ return null; } // when images are floating, the block had a div (with no height) because its contents are floating // in that case we want to resize the figure inside the block. So check if there's a figure inside it var figure_is_floating = true; var figure_to_resize = a_dynamic_resize_block.getElementsByTagName("figure")[0]; if( typeof figure_to_resize === 'undefined'){ // There's no figure inside it. The figure is the top-level element in the block. figure_to_resize = a_dynamic_resize_block; figure_is_floating = false; } // For floating images we need to also set the block's width (I can't figure out how to get CSS to set the width automatically) // so for that we need to figure out how much the image inside the figure got resized (non-trivial if there's a caption). var figure_image = figure_to_resize.getElementsByTagName('img')[0]; // determine the caption's height var figure_caption = figure_to_resize.getElementsByTagName('figcaption')[0]; var caption_height = 0; if(typeof(figure_caption) !== 'undefined'){ var caption_box = figure_caption.getPrinceBoxes()[0]; caption_height = caption_box.marginTop + caption_box.h + caption_box.marginBottom; } // If we can't find an image to resize, there's nothing to resize (which is weird but somehow happens?) if(typeof(figure_image) !== 'undefined') { var figure_image_box = figure_image.getPrinceBoxes()[0]; var figure_image_height = figure_image_box.h; var figure_box = figure_to_resize.getPrinceBoxes()[0]; var page_box = PDF.pages[figure_box.pageNum - 1]; // don't forget to take the footnote height into account var footnotes_height = 0; for (var index in page_box['children']) { var box_on_page = page_box['children'][index]; if (box_on_page['type'] === 'FOOTNOTES') { footnotes_height = box_on_page['h']; } } var max_allowable_height = pmb_px_to_pts(pmb.max_image_size); // page_box.y is the distance from the top of the page to the bottom margin; // page_box.h is the distance from the bottom margin to the top margin // figure_box.y is the distance from the top of the page to the bottom-left corner of the figure // see https://www.princexml.com/forum/post/23543/attachment/img-fill.html var top_margin = page_box.y - page_box.h; var remaining_vertical_space = figure_box.y - top_margin - 10 - footnotes_height; var max_height_because_of_max_width = page_box.w * figure_image_box.h / figure_image_box.w + caption_height; // also gather the maximum heights from the original image var max_height_from_resolution_y_of_image = 100000; if('height' in figure_image.attributes){ max_height_from_resolution_y_of_image = pmb_px_to_pts(figure_image.attributes['height'].value); } // resolution_height px max_height pts // ------------------ = -------------- => max_height = max_width pts * original_height px / original_width px // resolution_width px max_width pts var max_height_from_resolution_x_of_image = 100000; if('width' in figure_image.attributes && 'height' in figure_image.attributes){ max_height_from_resolution_x_of_image = (page_box.w * figure_image.attributes['height'].value / figure_image.attributes['width'].value) + caption_height; } Log.info('IMG:' + figure_image.attributes['src'].value); Log.info(' page width:' + page_box.w); Log.info(' pmb.max_image_size' + pmb.max_image_size); Log.info(' remaining_vertical_space ' + remaining_vertical_space + '(distance to bottom margin ' + page_box.y + ', figure bottom at ' + figure_box.y + ')'); Log.info(' max_height_because_of_max_width' + max_height_because_of_max_width); Log.info(' max_height_from_resolution_y_of_image' + max_height_from_resolution_y_of_image); Log.info(' max_height_from_resolution_x_of_image' + max_height_from_resolution_x_of_image); Log.info(' caption height ' + caption_height); // put a limit on how big the image can be // use the design's maximum image size, which was passed from PHP var new_figure_height = Math.min( max_allowable_height, remaining_vertical_space, max_height_because_of_max_width, max_height_from_resolution_y_of_image, max_height_from_resolution_x_of_image ); Log.info('New figure size is ' + new_figure_height); var max_class = 'pmb-dynamic-resize-limited-by-unknown'; switch(new_figure_height){ case max_allowable_height: max_class = 'pmb-dynamic-resize-limited-by-max_allowable_height'; break; case remaining_vertical_space: max_class = 'pmb-dynamic-resize-limited-by-remaining_vertical_space'; break; case max_height_because_of_max_width: max_class = 'pmb-dynamic-resize-limited-by-max_height_because_of_max_width'; break; case max_height_from_resolution_y_of_image: max_class = 'pmb-dynamic-resize-limited-by-max_height_from_resolution_y_of_image'; break; case max_height_from_resolution_x_of_image: max_class = 'pmb-dynamic-resize-limited-by-max_height_from_resolution_x_of_image'; break; } Log.info('max height css class:'+ max_class); // Resize the block figure_to_resize.style.height = new_figure_height + "pt"; if (figure_is_floating) { // Used some grade 12 math to figure out this equation. var new_image_height = new_figure_height - figure_box.h + figure_image_height; var resize_ratio = new_image_height / figure_image_height; figure_to_resize.style.width = (figure_box.w * resize_ratio) + 'pt'; } } // Change the class so we know we don't try to resize this block again a_dynamic_resize_block.className = a_dynamic_resize_block.className.replace(/pmb-dynamic-resize/g, 'pmb-dynamic-resized') + ' ' + max_class; return a_dynamic_resize_block; } function pmb_extend_to_bottom(){ Log.info('pmb_extend_to_bottom'); // find all elements that should extend to bottom var dynamic_resize_elements = document.getElementsByClassName('pmb-fill-remaining-height'); if(dynamic_resize_elements.length){ Log.info('found something to resize'); // find their distance to the bottom of the page var element = dynamic_resize_elements[0]; var element_box = element.getPrinceBoxes()[0]; var page_box = PDF.pages[element_box.pageNum - 1]; Log.info('element to resize'); pmb_print_props(element_box, 'element to resize box'); pmb_print_props(page_box, 'page box'); var remaining_vertical_space = element_box.y - (page_box.y - page_box.h) - 50; Log.info('resize to ' + remaining_vertical_space); // make the element fill that vertical height element.style.height = remaining_vertical_space + "pt"; // remember not to do this one again element.className = element.className.replace(/pmb-fill-remaining-height/g, 'pmb-filled-remaining-height'); // redraw and look again Prince.registerPostLayoutFunc(pmb_extend_to_bottom); } else { Log.info('nothing more to do'); } } /** * From https://www.princexml.com/doc/cookbook/#how-and-where-is-my-box * @param pixels * @returns {number} */ function pmb_px_to_pts(pixels){ return pixels * (72 / 96); } /** * A debugging function, especially useful for figuring out what's on these "box" objects * @param obj * @param label */ function pmb_print_props(obj, label){ Log.info(label); for(var prop in obj){ var val = obj[prop]; Log.info(prop + ':' + val); } }

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Edit
FEATURESEnterprise Edition
Access Controls
Encryption
Version Control
OCR for Image Text Search
Bulk Upload and Download as Zip
Full Text Search
Stamping
eForms Management & Publish
Direct Email Capture & Email Filter
Document Sharing via
Email(ticket/download)
Document Rating
Document Tags
Document Archiving
Backup Management
Document Indexing
Metadata & Template Management
Document Sharing via Email
Collaboration
Compliance Management
Detailed Audit Trail & Reporting
Multi Tenancy
Workflow Design & Execution
Multi-lingual Support
LDAP / Active Directory Access
Web Services API
Document Scanning & Capturing
Meta Template & Tagging
Document History
Google Docs/MS Office Integration
Watched Folder
Document Indexi
Sharing Document with other Tenant &
Publically
Document Annotations
Digital Signature
Event Subscription & Notifications
Event Calendar/Scheduling Task
Mobile App (Android/iOS/Windows)
Edit
Key FeaturesStandard Edition
Configure different levels of permission to multiple users or roles.
Encrypted Transmission and Storage of Documents
Transparently manage and control multiple versions of any document
Optical Character Recognition for text search on any Image Document
Bulk Upload of Multiple Documents and Download Multiple Document as Zip
Document Searching by Full text, Meta Data, Tag and Many More.
Design, Edit, Control and Apply Multiple Stamps
Capture Data and Generate Predefined Documents in PDF using eForms
Direct Email Capture by Individual User & Email Filter
Document and Folder Sharing to External Parties via
Email
Document Rating by Multiple Users
Apply Multiple Free or Predefined Tags on Documents
Configure Document Archiving Bundle of Old Documents
Backup Management
The document gets Automatically Indexed in the Repository
Configure Different Metadata Template to Assign Category to a Document and Custom Indexes
Various Options to Share Documents via Email (Attachment, Encrypted Document, Download Ticket)
Built-in Calendar, Task Definition and Assigning to Multiple Users
Various Compliances ISO 9001:2018, ISO27001, SEC etc
Detailed Audit Trail of User Activities
Setup of multiple isolated repositories with specific users
Very Simple to Design of Various Document Intensive Proceses like Various kinds of Approvals
It supports the search of documents in different languages
LDAP / Active Directory Access
External Integration API
Document Scanning & Capturing
Meta Template & Tagging
Document History
Google Docs/MS Office Integration
Watched Folder
Document Indexi
Sharing Document with other Tenant &
Publically
Applying Multiple Annotations on Document Preview and downloading PDF document with annotation
Configure Organization Level Digital Signature and Digitally Sign any document by users of the system
Monitor Documents with Event Subscription & Notifications.
Event Calendar/Scheduling Task
Mobile App (Android/iOS/Windows)
WhatsApp
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