diff options
Diffstat (limited to '')
| -rw-r--r-- | library/vendor/dompdf/README.md | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/library/vendor/dompdf/README.md b/library/vendor/dompdf/README.md new file mode 100644 index 0000000..7546e80 --- /dev/null +++ b/library/vendor/dompdf/README.md @@ -0,0 +1,232 @@ +Dompdf +====== + +[](https://github.com/dompdf/dompdf/actions/workflows/test.yml) +[](https://packagist.org/packages/dompdf/dompdf) +[](https://packagist.org/packages/dompdf/dompdf) +[](https://packagist.org/packages/dompdf/dompdf) + +**Dompdf is an HTML to PDF converter** + +At its heart, dompdf is (mostly) a [CSS 2.1](http://www.w3.org/TR/CSS2/) compliant +HTML layout and rendering engine written in PHP. It is a style-driven renderer: +it will download and read external stylesheets, inline style tags, and the style +attributes of individual HTML elements. It also supports most presentational +HTML attributes. + +*This document applies to the latest stable code which may not reflect the current +release. For released code please +[navigate to the appropriate tag](https://github.com/dompdf/dompdf/tags).* + +---- + +**Check out the [demo](http://eclecticgeek.com/dompdf/debug.php) and ask any +question on [StackOverflow](https://stackoverflow.com/questions/tagged/dompdf) or +in [Discussions](https://github.com/dompdf/dompdf/discussions).** + +Follow us on [](http://www.twitter.com/dompdf). + +--- + + + +## Features + + * Handles most CSS 2.1 and a few CSS3 properties, including @import, @media & + @page rules + * Supports most presentational HTML 4.0 attributes + * Supports external stylesheets, either local or through http/ftp (via + fopen-wrappers) + * Supports complex tables, including row & column spans, separate & collapsed + border models, individual cell styling + * Image support (gif, png (8, 24 and 32 bit with alpha channel), bmp & jpeg) + * No dependencies on external PDF libraries, thanks to the R&OS PDF class + * Inline PHP support + * Basic SVG support (see "Limitations" below) + +## Requirements + + * PHP version 7.1 or higher + * DOM extension + * MBString extension + * php-font-lib + * php-svg-lib + +Note that some required dependencies may have further dependencies +(notably php-svg-lib requires sabberworm/php-css-parser). + +### Recommendations + + * OPcache (OPcache, XCache, APC, etc.): improves performance + * GD (for image processing) + * IMagick or GMagick extension: improves image processing performance + +Visit the wiki for more information: +https://github.com/dompdf/dompdf/wiki/Requirements + +## About Fonts & Character Encoding + +PDF documents internally support the following fonts: Helvetica, Times-Roman, +Courier, Zapf-Dingbats, & Symbol. These fonts only support Windows ANSI +encoding. In order for a PDF to display characters that are not available in +Windows ANSI, you must supply an external font. Dompdf will embed any referenced +font in the PDF so long as it has been pre-loaded or is accessible to dompdf and +reference in CSS @font-face rules. See the +[font overview](https://github.com/dompdf/dompdf/wiki/About-Fonts-and-Character-Encoding) +for more information on how to use fonts. + +The [DejaVu TrueType fonts](https://dejavu-fonts.github.io/) have been pre-installed +to give dompdf decent Unicode character coverage by default. To use the DejaVu +fonts reference the font in your stylesheet, e.g. `body { font-family: DejaVu +Sans; }` (for DejaVu Sans). The following DejaVu 2.34 fonts are available: +DejaVu Sans, DejaVu Serif, and DejaVu Sans Mono. + +## Easy Installation + +### Install with composer + +To install with [Composer](https://getcomposer.org/), simply require the +latest version of this package. + +```bash +composer require dompdf/dompdf +``` + +Make sure that the autoload file from Composer is loaded. + +```php +// somewhere early in your project's loading, require the Composer autoloader +// see: http://getcomposer.org/doc/00-intro.md +require 'vendor/autoload.php'; + +``` + +### Download and install + +Download a packaged archive of dompdf and extract it into the +directory where dompdf will reside + + * You can download stable copies of dompdf from + https://github.com/dompdf/dompdf/releases + * Or download a nightly (the latest, unreleased code) from + http://eclecticgeek.com/dompdf + +Use the packaged release autoloader to load dompdf, libraries, +and helper functions in your PHP: + +```php +// include autoloader +require_once 'dompdf/autoload.inc.php'; +``` + +Note: packaged releases are named according using semantic +versioning (_dompdf_MAJOR-MINOR-PATCH.zip_). So the 1.0.0 +release would be dompdf_1-0-0.zip. This is the only download +that includes the autoloader for Dompdf and all its dependencies. + +### Install with git + +From the command line, switch to the directory where dompdf will +reside and run the following commands: + +```sh +git clone https://github.com/dompdf/dompdf.git +cd dompdf/lib + +git clone https://github.com/PhenX/php-font-lib.git php-font-lib +cd php-font-lib +git checkout 0.5.1 +cd .. + +git clone https://github.com/PhenX/php-svg-lib.git php-svg-lib +cd php-svg-lib +git checkout v0.3.2 +cd .. + +git clone https://github.com/sabberworm/PHP-CSS-Parser.git php-css-parser +cd php-css-parser +git checkout 8.1.0 +``` + +Require dompdf and it's dependencies in your PHP. +For details see the [autoloader in the utils project](https://github.com/dompdf/utils/blob/master/autoload.inc.php). + +## Quick Start + +Just pass your HTML in to dompdf and stream the output: + +```php +// reference the Dompdf namespace +use Dompdf\Dompdf; + +// instantiate and use the dompdf class +$dompdf = new Dompdf(); +$dompdf->loadHtml('hello world'); + +// (Optional) Setup the paper size and orientation +$dompdf->setPaper('A4', 'landscape'); + +// Render the HTML as PDF +$dompdf->render(); + +// Output the generated PDF to Browser +$dompdf->stream(); +``` + +### Setting Options + +Set options during dompdf instantiation: + +```php +use Dompdf\Dompdf; +use Dompdf\Options; + +$options = new Options(); +$options->set('defaultFont', 'Courier'); +$dompdf = new Dompdf($options); +``` + +or at run time + +```php +use Dompdf\Dompdf; + +$dompdf = new Dompdf(); +$options = $dompdf->getOptions(); +$options->setDefaultFont('Courier'); +$dompdf->setOptions($options); +``` + +See [Dompdf\Options](src/Options.php) for a list of available options. + +### Resource Reference Requirements + +In order to protect potentially sensitive information Dompdf imposes +restrictions on files referenced from the local file system or the web. + +Files accessed through web-based protocols have the following requirements: + * The Dompdf option "isRemoteEnabled" must be set to "true" + * PHP must either have the curl extension enabled or the + allow_url_fopen setting set to true + +Files accessed through the local file system have the following requirement: + * The file must fall within the path(s) specified for the Dompdf "chroot" option + +## Limitations (Known Issues) + + * Table cells are not pageable, meaning a table row must fit on a single page. + * Elements are rendered on the active page when they are parsed. + * Embedding "raw" SVG's (`<svg><path...></svg>`) isn't working yet, you need to + either link to an external SVG file, or use a DataURI like this: + ```php + $html = '<img src="data:image/svg+xml;base64,' . base64_encode($svg) . '" ...>'; + ``` + Watch https://github.com/dompdf/dompdf/issues/320 for progress + * Does not support CSS flexbox. + * Does not support CSS Grid. +--- + +[](http://goo.gl/DSvWf) + +*If you find this project useful, please consider making a donation. +Any funds donated will be used to help further development on this project.)* |