Background or watermark for PDF files can be generated by placing  invoice-background.svg or invoice-background.png to "assets/img" folder inside WHMCS root. SVG file is recommended...

By default Clean PDF provides one line of description and truncates the rest. To break long desctiptions into multiple lines, edit Fonts tab on CleanPDF module page. Advanced Tab includes option to adjust...

Logo that is used for CleanPDF invoice is located in the following folder:"whmcs root" -> assets -> imglogo.png will be used for invoice PDF and logo.svg if present in the same folder will get priority.

Override folder will keep all custom changes to template files during CleanPDF module updates. Create overrides folder inside \modules\addons\clean_pdf\templates\ Copy invoicepdf.php or quotepdf.php from...

Custom fonts can be installed by adding 3 font files to fonts folder \modules\addons\clean_pdf\assets\fonts  Rename 3 weights of font files to the following format: Custom-Thin.ttf...