Import your PDF
Drag in a document or choose a PDF from your device. The file stays in the browser session.
Local PDF processing
Private PDF watermark editor
Add text, image, pattern, and professional seal watermarks to PDFs directly in your browser. GhostMark keeps the workflow focused: import a document, mark it clearly, preview the result, and export a new PDF without sending the file to a service.
No upload. No account. No tracking.
Text watermark
Image watermark
Pattern watermark
Seal watermark
How it works
Add watermark layers
Use one mark or stack several layers: text, image, pattern, and seal.
Preview and export
Check placement before export. The final PDF is generated locally.
What you can add
Text watermark
Mark drafts, contracts, notes, reports, and internal copies with clear labels.
Image watermark
Add a logo or graphic mark and adjust its size, position, opacity, and rotation.
Repeated pattern
Repeat a short mark across pages for drafts, review files, and internal copies.
Professional seal
Add reviewed, approved, controlled-copy, or document-control seals.
Why local processing matters
A no upload PDF watermark workflow is useful when the document is a draft, contract, school note, client file, or internal report. GhostMark runs in the browser, keeps the active PDF in memory while you work, and does not include an upload endpoint, account system, analytics script, or tracking code.
GhostMark vs typical online PDF editors
| Feature | GhostMark | Typical online editors |
|---|---|---|
| Requires an account | No | Often |
| Uploads files to a server | No | Often |
| Text watermark | Yes | Often |
| Image watermark | Yes | Depends |
| Pattern watermark | Yes | Depends |
| Seal watermark | Yes | Depends |
| Local processing | Yes | Depends |
| Tracking | No | Depends |
FAQ
Can I add a watermark to a PDF without uploading it?
Yes. Open GhostMark, import your PDF in the browser, add a text, image, pattern, or seal watermark, preview it, and export a new PDF locally.
Can I add an image or logo watermark?
Yes. Use an image layer and adjust its size, position, opacity, and rotation before export.
Is GhostMark free?
Yes. GhostMark is a free PDF watermark tool and the code is open source under the MIT License.
Does it work on mobile?
GhostMark runs in modern browsers. A tablet or desktop screen is recommended for precise PDF editing.
Can I add more than one watermark?
Yes. GhostMark supports multiple watermark layers, including text, image, repeated pattern, and professional seal layers.
Is the exported PDF final?
The live preview is visual. The exported PDF is the final file generated by GhostMark.
Add a watermark to your PDF locally
Open GhostMark, choose the watermark layers you need, preview the document, and export a new PDF.
Start watermarking