mPDF is a PHP library which generates PDF files from UTF-8 encoded HTML.
It is based on FPDF and HTML2FPDF (see CREDITS), with a number of enhancements. mPDF was written by Ian Back and is released under the GNU GPL v2 licence.
⚠ If you are viewing this file on mPDF GitHub repository homepage or on Packagist, please note that the default repository branch isdevelopment
which can differ from the last stable release.
Requirements
PHP versions and extensions
mPDF >=7.0
is supported onPHP ^5.6 || ~7.0.0 || ~7.1.0 || ~7.2.0
PHP 7.3
is supported sincemPDF v7.1.7
PHP 7.4
is supported sincemPDF v8.0.4
PHP 8.0
is supported sincemPDF v8.0.10
PHP mbstring
and 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.
Support us
Consider supporting development of mPDF with a donation of any value. Donation button can be found on the main page of the documentation.
Installation
Official installation method is via composer and its packagist package mpdf/mpdf.
$ composer require mpdf/mpdf
Usage
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 application/pdf
Content-type.
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 (typically cli
, webserver
, fpm
).
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.
For more information about custom temporary directory see the note on Folder for temporary files in the section on Installation & Setup in the manual.
If you have problems, please read the section on troubleshooting in the manual.
Online manual
Online manual is available at https://mpdf.github.io/.
For general questions or troubleshooting please use the mpdf tag at Stack Overflow (and not the project's issue tracker).
Contributing
Before submitting issues and pull requests please read the CONTRIBUTING.md file.
Unit Testing
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.