Watermark PDF - Private, Free, No Upload

Drop a PDF to watermark

Live preview updates as you type

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Network uploads during this session

0 (verify in DevTools > Network)

File size limit

None (browser memory)

Output watermark

None

Frequently asked

Text or image watermark?

Both. Type any text with custom font/color, or upload a logo/stamp image.

Can I control position and angle?

Yes. Diagonal, horizontal, vertical. Nine anchor positions. Any opacity.

Front or behind the content?

Your choice. Behind is subtle (great for backgrounds), front is bold (great for CONFIDENTIAL stamps).

Can I apply to specific pages only?

Yes. Pick all pages, first page only, or a custom range.

Is the PDF modified locally?

Yes. 100% in-browser. Your PDF is never uploaded.