PDF Watermark
Upload a PDF and stamp every page with a custom text watermark — set the label and opacity, then download the watermarked file without uploading to any server.
Read: PDF Watermark Guide: Add Text Watermark Online →
- Free to Use
- No Signup
- Privacy Friendly
How to watermark a PDF
- 1
Upload your PDF
Drop or browse to select the document you want to watermark.
- 2
Set watermark text
Enter text like CONFIDENTIAL or DRAFT and adjust opacity from subtle to prominent.
- 3
Download watermarked PDF
Click download to save the PDF with the watermark on every page.
PDF text watermarks
A text watermark overlays semi-transparent text diagonally across each page. Lower opacity (10–30%) marks documents subtly; higher opacity (50%+) makes status unmistakable.
- CONFIDENTIAL — legal and HR document marking
- DRAFT — work-in-progress review copies
- SAMPLE — preview documents before purchase
Why Use This Tool?
Every Page
Watermark stamps all pages in one operation.
Opacity Control
From subtle 10% to bold 100% visibility.
Quick Marking
Mark draft reports and confidential docs on any device.
Local Only
pdf-lib applies watermarks in your browser.
Frequently Asked Questions
Can I use image watermarks?
This tool adds text watermarks only. For logo watermarks, use a desktop editor or design tool.
Does watermarking prevent copying?
Watermarks deter casual sharing but do not encrypt or DRM-protect the PDF.
Will watermarks print?
Yes. Watermarks are embedded in the page content and appear when printed.
Can I remove a watermark later?
This tool adds watermarks permanently. Keep an unwatermarked original if you need both versions.
Is this PDF watermark tool free?
Yes. Unlimited watermarking with no signup.

Mark Documents DRAFT or CONFIDENTIAL Instantly
Sharing review copies and internal reports requires visible status marking — but enterprise PDF tools are expensive and cloud watermark services upload your files. Stamp text locally and download in seconds.
