Add Watermark to PDF
Add a diagonal text watermark to every page of your PDF. Customize watermark text and opacity. Runs in your browser.
#pdf#watermark#stamp#confidential#copyright#protect
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How to use
- 1Upload your PDF file.
- 2Enter the watermark text (e.g. "CONFIDENTIAL").
- 3Adjust the opacity (0 = invisible, 1 = solid).
- 4Click "Add Watermark" and download.
Frequently Asked Questions — Add Watermark to PDF
Can I add a logo watermark?+
Currently only text watermarks are supported. Image watermarks may be added in the future.
Is my PDF uploaded to a server?+
No. All processing happens in your browser using pdf-lib.