How to stamp a PDF online
Place a digital seal on a PDF in your browser.
- 1
Create or download your stamp PNG from Stamp Maker.
- 2
Open Stamp PDF and choose your PDF.
- 3
Place, resize, and rotate the stamp on each page you need.
- 4
Download the stamped PDF — processing is designed to run in your browser.
Frequently asked questions
How do I stamp a PDF online free?
Create a transparent PNG in Stamp Maker, open Stamp PDF, upload the PDF and seal, position it, then download. Free, no signup, no watermark.
Can I apply one seal to every page?
Yes. Select the stamp and choose Apply to all pages so copies keep the same position, size and rotation.
Does Stamp PDF upload my document?
Stamping is designed to process in your browser for the primary download path. See the Privacy page for contact forms and analytics.
What stamp file works best on PDFs?
A transparent PNG of a round or oblong seal. Clean scans with the image tools if the paper background is still visible.
Can I use two different seals on one PDF?
Yes. Add another stamp image for a second seal — for example a company seal plus an authorised signatory mark.