PDF stamping is part of the Starter plan and above.
Turn it on
In the product editor, open the Product step and find Delivery protection. Switch on Stamp PDFs with the buyer’s email.What the stamp looks like
A small grey line at the bottom of every page, away from your content:Good to know
- Each buyer’s copy is stamped once, when they first download it, and kept ready for their next downloads.
- Only PDFs are stamped. Zip files, videos, images and links are delivered exactly as before.
- A PDF that can’t be stamped (password-protected or damaged) is delivered as is. Your buyer always gets their file.
- Stamping works on every PDF of the product: a single file, each file of a bundle and each variant’s file.
- If your plan no longer includes stamping, buyers get the original files again. Your setting is kept.
For developers
GET / PATCH /products/{id}/pdf-stamping with { "enabled": true }. See
Limited drops, PDF stamping & download limits.