PDF Watermark

PDF Watermark

Local Processing

Stamp a text or logo image watermark on every page of a PDF.

How It Works & Processing Standards

Stamp a text or logo image watermark on every page of a PDF.

Password-encrypted PDFs are not supported.

Tool processing runs in your browser. If you create a calculator or conversion share link, its values are included in the URL. See the privacy policy for account, analytics and advertising data.

Current Limits

  • Desktop max file size: 50MB
  • Mobile max file size: 25MB
  • Desktop max PDF pages: 300 pages

Choose text or image under "Task". Mark documents as copies or confidential, or add a company logo, before sending them out.

Password-protected PDFs cannot be opened. Save an unprotected copy first.

What You Can Do

Text watermark
Size, opacity, angle, color and position.
Image watermark
A logo PNG sized relative to page width.

How to Use PDF Watermark

  1. 1
    Choose a taskText or image.
  2. 2
    Content and styleText or logo, opacity, angle and position.
  3. 3
    DownloadSave the watermarked PDF.

Examples

Confidential mark
Input: Report PDF, "CONFIDENTIAL", 45°, 20% opacity
Result: A PDF with a diagonal CONFIDENTIAL across every page

Common Use Cases

  • Marking externally shared documents as copies or confidential
  • Adding a company logo to proposals or quotes

Frequently Asked Questions (FAQ)

Can the text watermark use non-Latin scripts?

Text watermarks use standard PDF fonts, so scripts such as Korean are not available. Make the text a PNG and use an image watermark instead.

Is my PDF uploaded?

No. Files are processed only inside this browser and never transmitted, so contracts or ID copies stay private.

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