mPDF is a PHP library which generates PDF files from UTF-8 encoded HTML.
⚠If you are viewing this file on mPDF GitHub repository homepage or on Packagist, please note that the default repository branch is
developmentwhich can differ from the last stable release.
PHP versions and extensions
mPDF >=7.0is supported on
PHP ^5.6 || ~7.0.0 || ~7.1.0 || ~7.2.0
PHP 7.3is supported since
PHP 7.4is supported since
PHP 8.0is supported since
PHP 8.1is supported as of
gd extensions have to be loaded.
Additional extensions may be required for some advanced features such as
zlib for compression of output and
embedded resources such as fonts,
bcmath for generating barcodes or
xml for character set conversion
and SVG handling.
Known server caveats
mPDF has some problems with fetching external HTTP resources with single threaded servers such as
php -S. A proper
server such as nginx (php-fpm) or Apache is recommended.
Official installation method is via composer and its packagist package mpdf/mpdf.
$ composer require mpdf/mpdf
The simplest usage (since version 7.0) of the library would be as follows:
<?php require_once __DIR__ . '/vendor/autoload.php'; $mpdf = new \Mpdf\Mpdf(); $mpdf->WriteHTML('<h1>Hello world!</h1>'); $mpdf->Output();
This will output the PDF inline to the browser as
Setup & Configuration
All configuration directives can
be set by the
$config parameter of the constructor.
It is recommended to set one's own temporary directory via
tempDir configuration variable.
The directory must have write permissions (mode
775 is recommended) for users using mPDF
Warning: mPDF will clean up old temporary files in the temporary directory. Choose a path dedicated to mPDF only.
<?php $mpdf = new \Mpdf\Mpdf(['tempDir' => __DIR__ . '/tmp']);
By default, the temporary directory will be inside vendor directory and will have write permissions from
post_install composer script.
If you have problems, please read the section on troubleshooting in the manual.
About CSS support and development state
mPDF as a whole is a quite dated software. Nowadays, better alternatives are available, albeit not written in PHP.
Use mPDF if you cannot use non-PHP approach to generate PDF files or if you want to leverage some of the benefits of mPDF over browser approach – color handling, pre-print, barcodes support, headers and footers, page numbering, TOCs, etc. But beware that a HTML/CSS template tailored for mPDF might be necessary.
If you are looking for state of the art CSS support, mirroring existing HTML pages to PDF, use headless Chrome.
mPDF will still be updated to enhance some internal capabilities and to support newer versions of PHP, but better and/or newer CSS support will most likely not be implemented.
Online manual is available at https://mpdf.github.io/.
For general questions or troubleshooting please use Discussions.
You can also use the mpdf tag at Stack Overflow as the StackOverflow user base is more likely to answer you in a timely manner.
Before submitting issues and pull requests please read the CONTRIBUTING.md file.
Unit testing for mPDF is done using PHPUnit.
To get started, run
composer install from the command line while in the mPDF root directory
(you'll need composer installed first).
To execute tests, run
composer test from the command line while in the mPDF root directory.
Any assistance writing unit tests for mPDF is greatly appreciated. If you'd like to help, please
note that any PHP file located in the
/tests/ directory will be autoloaded when unit testing.