How do I add a watermark to a PDF for free?

Go to comfortablepdf.com/watermark-pdf, upload your PDF, type your watermark text or upload an image, customize position and opacity, and download.

How to add a CONFIDENTIAL watermark to PDF?

Use ComfortablePDF's Watermark PDF tool, type CONFIDENTIAL as text, choose diagonal placement and 30-50% opacity for a professional result.

Upload your PDF and your logo image to ComfortablePDF's watermark tool, set transparency and position, and download the watermarked PDF.

Yes. ComfortablePDF applies your watermark to all pages of the PDF simultaneously, saving you from page-by-page editing.

ComfortablePDF adds text or image watermarks to PDFs completely free without Adobe Acrobat or any software installation.

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Add text or image watermark to PDF. 100% free, no registration required.

Text or image Custom position Transparency Unlimited No Signup SSL Secure

1 Upload PDF

2 Create Watermark

3 Preview & Apply

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Select PDF to Watermark

Upload your PDF, then add a text or image watermark

Choose PDF

Max 50MB · PDF only

Applying Watermark…

Please wait

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Watermark Applied!

Your watermark has been applied to the PDF.

FAQ