PDF Watermark — Add Text Watermark to PDF Online

Stamp a custom text watermark onto every page of your PDF. Control size, color, opacity, rotation, and position — all in your browser, no upload.

  • 100% free, no sign-up required
  • Runs entirely in your browser — no file upload to server
  • Text, opacity, rotation, color, and tiled placement
  • Works on desktop and mobile
  • Privacy-first: your data never leaves your device

Is this tool really free?

Yes, completely free with no hidden charges, watermarks, or file limits.

Where are my files processed?

All processing happens locally in your browser. Nothing is uploaded to any server.

Can I watermark a password-protected PDF?

No. Remove the encryption/password first, then apply the watermark.

Can I use an image or logo as the watermark?

This tool applies a text watermark. Image watermark support may be added later.