GekiPDF draws your text diagonally across each page at the opacity you set (default 18%), which stays readable but does not hide content.
Use it before sharing quotes, contracts or internal drafts. The watermark is part of the page, not an overlay that can be switched off.
How to watermark pdf
- Upload the PDF.
- Type the watermark text.
- Set opacity (0.05–1).
- Download the watermarked PDF.
Specifications
| Max file size | 50 MB |
|---|---|
| Text length | Up to 60 characters |
| Watermark | That is the point |
Frequently asked questions
Can the watermark be removed later?
It is merged into the page content, so removing it requires real PDF editing — that is why it deters leaks.
Can I use a logo instead of text?
This tool does text watermarks. Text works well for CONFIDENTIAL, DRAFT and internal-use marks.
Will the watermark appear on every page?
Yes — all pages are stamped in one pass.
How do I add a CONFIDENTIAL watermark to every page of a PDF?
Type the text, pick opacity, rotation and position, and GekiPDF draws it on every page as real text, so it stays searchable and copy-detection works.
Can I use a logo as a watermark?
Text watermarks are supported directly. For logo images, convert the logo to a PDF stamp and merge it page by page, or use a desktop tool for pixel-perfect placement.