With my Advanced Invoice Layout extension it is easy to change the font family in the Magento PDF invoice. Therefore the Advanced Invoice Layout extensions ships with several default fonts which you can choose from: Courier, DejaVu Sans, Helvetica, Times Due to licensing issues it is not possible to add other font families by default but you can also easily add your own font family with the following possibilities: Use Internet Fonts, e.g. Google Fonts Use Local Fonts, e.g. in TTF format If you want to use Internet Fonts, e.g. Google Fonts (Note: this supported by our Advanced Invoice Layout Extension for Magento 1 from version 2.3.16 or newer or for Magento 2) Additional fonts can easily be embedded via CSS, e.g. with Google Fonts. Please note that therefore the font files have to be downloaded and saved locally (due to a bug in the used PDF library)! @font-face { font-family: 'Roboto'; src: url('/path/to/Roboto-Medium.ttf') format('truetype'); font-weight: normal; font-style: normal; }@font-face { font-family: 'Roboto'; src: url('/path/to/Roboto-Bold.ttf') format('truetype'); font-weight: bold; font-style: normal; }body { font-family: Roboto !important } If you want to use local fonts, e.g. in TTF format Advanced Invoice Layout for Magento 1 with version 2.3.16 or newer You have to download the load_font.php utility from GitHub to the folder lib/dompdf-advancedinvoicelayout/ and change the third line of the file to require_once "autoload.inc.php"; Then change into the directory lib/dompdf-advancedinvoicelayout. Advanced Invoice Layout for Magento 2 You simply have to download the load_font.php utility from GitHub to the Magento root folder. Then you need to make sure that the used DomPDF library gets to know the new font by executing the following command in the Magento root directory (replace MyFont with your desired font): php -f load_font.php 'MyFont' /path/to/myfont Finally you can use the font in your CSS with font-family: MyFont; Advanced Invoice Layout for Magento 1 with version 2.3.15 or older You need to temporarily rename the file lib/dompdf/dompdf_config.custom.inc.php to something else. Then change into the directory lib/dompdf-advancedinvoicelayout. Execute the above mentioned load_font.php command. Afterwards inject the new font into the XML config object (see app/code/community/Vianetz/AdvancedInvoiceLayout/etc/config.xml) by extending the XML node default/advancedinvoicelayout/fonts, e.g. The node title must match the generated file in step 2. And that's it. Now you can choose the new font family in the configuration section under System->Configuration->AdvancedInvoiceLayout. For further explanations see also the PDF Library documentation about About Fonts and Character Encoding.