Verified browser tool

Add Watermark

Add text or image watermarks to PDF pages.

Category: Edit & Annotate

Processing: This device

Drop a PDF here or click to browse

Workflow

How to use Add Watermark

Place the same text watermark across PDF pages with adjustable opacity and angle.

  1. 1

    Select one PDF.

  2. 2

    Enter the watermark text.

  3. 3

    Set its opacity and rotation.

  4. 4

    Apply the watermark and download the new PDF.

Result

What this tool produces

A new PDF with the text watermark drawn on its pages.

Useful for

  • • Mark a draft
  • • Label confidential material
  • • Add a review status

Local document bytes

The selected file is read into browser memory and is not intentionally posted to a JadePDF processing endpoint.

Automated browser verification

Synthetic documents exercise the bundled runtime, worker loading, transformation, and network boundary in Chromium.

Not a professional certification

Verify output that will be filed, signed, archived, printed, or used in a regulated process.

Questions about Add Watermark

Does Add Watermark upload my document?+

No. The verified launch workflow processes selected document bytes in the browser. Ordinary requests for application assets still go to Cloudflare.

Do I need an account?+

No account or subscription is required for the verified launch tools.

Should I keep the original file?+

Yes. PDF structures vary, so keep the original and inspect important output before submitting, signing, printing, or archiving it.