4 * DOMPDF configuration options.
6 * Changes to these config files are not supported by BookStack and may break upon updates.
7 * Configuration should be altered via the `.env` file or environment variables.
8 * Do not edit this file unless you're happy to maintain any changes yourself.
10 $dompdfPaperSizeMap = [
17 'show_warnings' => false, // Throw an Exception on warnings from dompdf
21 * The location of the DOMPDF font directory.
23 * The location of the directory where DOMPDF will store fonts and font metrics
24 * Note: This directory must exist and be writable by the webserver process.
25 * *Please note the trailing slash.*
27 * Notes regarding fonts:
28 * Additional .afm font metrics can be added by executing load_font.php from command line.
30 * Only the original "Base 14 fonts" are present on all pdf viewers. Additional fonts must
31 * be embedded in the pdf file or the PDF may not display correctly. This can significantly
32 * increase file size unless font subsetting is enabled. Before embedding a font please
33 * review your rights under the font license.
35 * Any font specification in the source HTML is translated to the closest font available
36 * in the font directory.
38 * The pdf standard "Base 14 fonts" are:
39 * Courier, Courier-Bold, Courier-BoldOblique, Courier-Oblique,
40 * Helvetica, Helvetica-Bold, Helvetica-BoldOblique, Helvetica-Oblique,
41 * Times-Roman, Times-Bold, Times-BoldItalic, Times-Italic,
42 * Symbol, ZapfDingbats.
44 'font_dir' => storage_path('fonts/'), // advised by dompdf (https://github.com/dompdf/dompdf/pull/782)
47 * The location of the DOMPDF font cache directory.
49 * This directory contains the cached font metrics for the fonts used by DOMPDF.
50 * This directory can be the same as DOMPDF_FONT_DIR
52 * Note: This directory must exist and be writable by the webserver process.
54 'font_cache' => storage_path('fonts/'),
57 * The location of a temporary directory.
59 * The directory specified must be writeable by the webserver process.
60 * The temporary directory is required to download remote images and when
61 * using the PFDLib back end.
63 'temp_dir' => sys_get_temp_dir(),
66 * ==== IMPORTANT ====.
68 * dompdf's "chroot": Prevents dompdf from accessing system files or other
69 * files on the webserver. All local files opened by dompdf must be in a
70 * subdirectory of this directory. DO NOT set it to '/' since this could
71 * allow an attacker to use dompdf to read any files on the server. This
72 * should be an absolute path.
73 * This is only checked on command line call by dompdf.php, but not by
74 * direct class use like:
75 * $dompdf = new DOMPDF(); $dompdf->load_html($htmldata); $dompdf->render(); $pdfdata = $dompdf->output();
77 'chroot' => realpath(public_path()),
82 * Protocols and PHP wrappers allowed in URIs, and the validation rules
83 * that determine if a resouce may be loaded. Full support is not guaranteed
84 * for the protocols/wrappers specified
89 'allowed_protocols' => [
90 "file://" => ["rules" => []],
91 "http://" => ["rules" => []],
92 "https://" => ["rules" => []]
98 'log_output_file' => null,
101 * Whether to enable font subsetting or not.
103 'enable_fontsubsetting' => false,
106 * The PDF rendering backend to use.
108 * Valid settings are 'PDFLib', 'CPDF' (the bundled R&OS PDF class), 'GD' and
109 * 'auto'. 'auto' will look for PDFLib and use it if found, or if not it will
110 * fall back on CPDF. 'GD' renders PDFs to graphic files. {@link * Canvas_Factory} ultimately determines which rendering class to instantiate
111 * based on this setting.
113 * Both PDFLib & CPDF rendering backends provide sufficient rendering
114 * capabilities for dompdf, however additional features (e.g. object,
115 * image and font support, etc.) differ between backends. Please see
116 * {@link PDFLib_Adapter} for more information on the PDFLib backend
117 * and {@link CPDF_Adapter} and lib/class.pdf.php for more information
118 * on CPDF. Also see the documentation for each backend at the links
121 * The GD rendering backend is a little different than PDFLib and
122 * CPDF. Several features of CPDF and PDFLib are not supported or do
123 * not make any sense when creating image files. For example,
124 * multiple pages are not supported, nor are PDF 'objects'. Have a
125 * look at {@link GD_Adapter} for more information. GD support is
126 * experimental, so use it at your own risk.
128 * @link http://www.pdflib.com
129 * @link http://www.ros.co.nz/pdf
130 * @link http://www.php.net/image
132 'pdf_backend' => 'CPDF',
135 * PDFlib license key.
137 * If you are using a licensed, commercial version of PDFlib, specify
138 * your license key here. If you are using PDFlib-Lite or are evaluating
139 * the commercial version of PDFlib, comment out this setting.
141 * @link http://www.pdflib.com
143 * If pdflib present in web server and auto or selected explicitely above,
144 * a real license code must exist!
146 //"DOMPDF_PDFLIB_LICENSE" => "your license key here",
149 * html target media view which should be rendered into pdf.
150 * List of types and parsing rules for future extensions:
151 * http://www.w3.org/TR/REC-html40/types.html
152 * screen, tty, tv, projection, handheld, print, braille, aural, all
153 * Note: aural is deprecated in CSS 2.1 because it is replaced by speech in CSS 3.
154 * Note, even though the generated pdf file is intended for print output,
155 * the desired content might be different (e.g. screen or projection view of html file).
156 * Therefore allow specification of content here.
158 'default_media_type' => 'print',
161 * The default paper size.
163 * North America standard is "letter"; other countries generally "a4"
165 * @see CPDF_Adapter::PAPER_SIZES for valid sizes ('letter', 'legal', 'A4', etc.)
167 'default_paper_size' => $dompdfPaperSizeMap[env('EXPORT_PAGE_SIZE', 'a4')] ?? 'a4',
170 * The default paper orientation.
172 * The orientation of the page (portrait or landscape).
176 'default_paper_orientation' => "portrait",
179 * The default font family.
181 * Used if no suitable fonts can be found. This must exist in the font folder.
185 'default_font' => 'dejavu sans',
190 * This setting determines the default DPI setting for images and fonts. The
191 * DPI may be overridden for inline images by explictly setting the
192 * image's width & height style attributes (i.e. if the image's native
193 * width is 600 pixels and you specify the image's width as 72 points,
194 * the image will have a DPI of 600 in the rendered PDF. The DPI of
195 * background images can not be overridden and is controlled entirely
196 * via this parameter.
198 * For the purposes of DOMPDF, pixels per inch (PPI) = dots per inch (DPI).
199 * If a size in html is given as px (or without unit as image size),
200 * this tells the corresponding size in pt.
201 * This adjusts the relative sizes to be similar to the rendering of the
202 * html page in a reference browser.
204 * In pdf, always 1 pt = 1/72 inch
206 * Rendering resolution of various browsers in px per inch:
207 * Windows Firefox and Internet Explorer:
208 * SystemControl->Display properties->FontResolution: Default:96, largefonts:120, custom:?
210 * about:config *resolution: Default:96
211 * (xorg screen dimension in mm and Desktop font dpi settings are ignored)
213 * Take care about extra font/image zoom factor of browser.
215 * In images, <img> size in pixel attribute, img css style, are overriding
216 * the real image dimension in px for rendering.
225 * If this setting is set to true then DOMPDF will automatically evaluate
226 * inline PHP contained within <script type="text/php"> ... </script> tags.
228 * Enabling this for documents you do not trust (e.g. arbitrary remote html
229 * pages) is a security risk. Set this option to false if you wish to process
230 * untrusted documents.
234 'enable_php' => false,
237 * Enable inline Javascript.
239 * If this setting is set to true then DOMPDF will automatically insert
240 * JavaScript code contained within <script type="text/javascript"> ... </script> tags.
244 'enable_javascript' => false,
247 * Enable remote file access.
249 * If this setting is set to true, DOMPDF will access remote sites for
250 * images and CSS files as required.
251 * This is required for part of test case www/test/image_variants.html through www/examples.php
254 * This can be a security risk, in particular in combination with DOMPDF_ENABLE_PHP and
255 * allowing remote access to dompdf.php or on allowing remote html code to be passed to
256 * $dompdf = new DOMPDF(, $dompdf->load_html(...,
257 * This allows anonymous users to download legally doubtful internet content which on
258 * tracing back appears to being downloaded by your server, or allows malicious php code
259 * in remote html pages to be executed by your server with your account privileges.
263 'enable_remote' => env('ALLOW_UNTRUSTED_SERVER_FETCHING', false),
266 * A ratio applied to the fonts height to be more like browsers' line height.
268 'font_height_ratio' => 1.1,
273 * Allows people to disabled CSS float support
277 'enable_css_float' => true,
280 * Use the HTML5 Lib parser
282 * @deprecated This feature is now always on in dompdf 2.x
285 "enable_html5_parser" => true,