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To add a background or watermark in PDF Invoices & Packing Slips Generator for WooCommerce, go to WPFactory > PDF Invoicing, open Doc: Invoice, and find Page Options. Set Page background image for an image behind the content, or Page foreground image for a watermark over it. Both fields take a path inside the WordPress uploads folder.
Before you start #
- Place the image in the WordPress uploads folder. Both fields take a path inside the uploads folder, for example
2026/01/letterhead.png, not an uploaded file or a full URL. - Keep Set default images directory enabled in the General section so relative paths resolve to the uploads folder.
Steps #
- Go to WPFactory > PDF Invoicing (also reachable at WooCommerce > Settings > PDF Invoicing), open the Doc: Invoice section, and find Page Options.
- For a background (drawn behind the content), set Page background image (
page_background_img) to the image path. - For a watermark or stamp (drawn over the content), set Page foreground image (
page_foreground_img) to the image path. - Save changes and generate a document to check the placement.
Note: both fields accept shortcodes, so you can vary the image by order, for example show a “PAID” foreground only for completed orders by combining it with an [if] condition. Size the image to your page format (for example A4) for a clean fit.
Use cases #
- Print onto a branded background so invoices match your stationery.
- Stamp a semi-transparent “COPY” watermark over reprints.
- Overlay a signature image in the foreground.
Get more control #
Backgrounds and watermarks are free for one document. PDF Invoicing Pro lets each document type use its own background and foreground. See what Pro unlocks.