Image Stamp
EditDrop an image (logo, seal, signature) and stamp it onto every page of your PDF at the position and size you choose.
How to use Image Stamp
- Open this page in any modern web browser — no download or installation required.
- Click Add file or drag and drop your PDF onto the drop zone.
- Adjust the available settings to fit your needs.
- Click the action button and save the processed file — the result is ready instantly.
Files never leave your browser. No upload to any server.
Processing runs locally on your device. No queues, no waiting.
No signup, no watermarks, no limits. Use as many times as you like.
Why use Image Stamp on PDF Modern?
PDF Modern’s image stamp tool processes your file entirely within your web browser using modern WebAssembly technology. Unlike traditional online PDF services that require uploading your documents to remote servers, your files never leave your device — ensuring complete privacy and security. Processing happens at the full speed of your CPU, not limited by upload or download bandwidth, so even large files are handled in seconds. There are no file-size restrictions, no daily usage caps, no watermarks on output, and no account creation needed. It is a fully free, open tool built for everyday document workflows at home, school or the office.
Frequently asked questions
Where can I place the stamp?
Choose any of nine anchor points (corners, edges, centre) and tweak the size and opacity to taste.
Are PNG transparent backgrounds supported?
Yes — transparent PNGs render with their alpha channel intact, perfect for signatures and logos.