Free browser PDF tool
Watermark PDF Online Free
Stamp text diagonally across each page and download a new watermarked PDF.
Text watermarkAll pagesLocal processing
FREE browser PDF tool
Watermark PDF
Add a text watermark to a PDF.
How to use this tool
- 1
Upload a PDF.
- 2
Enter watermark text.
- 3
Download the watermarked PDF.
Are PDFs uploaded to a server?
No. This V1 PDF tool runs locally in your browser where technically possible. Cobalt Tools does not upload or store selected files.
Is this PDF tool free?
Yes. The browser PDF tools on Cobalt Tools are free to use.
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