Add Watermark
Stamp a text watermark across every page — control opacity, size and angle.
About this tool
Marking documents as DRAFT, CONFIDENTIAL or PAID protects them from misuse and miscommunication. Add Watermark stamps your chosen text across every page of the PDF, with full control over opacity, font size and angle.
A light diagonal watermark stays readable without obscuring content; a strong one clearly deters copying. The watermark becomes part of the page content in the output file.
How to use Add Watermark
1
Add your PDF file
Drag and drop the document to watermark.
2
Type your watermark
Enter the text and adjust opacity, size and angle.
3
Download the watermarked PDF
Every page carries your watermark.
Frequently asked questions
Can the watermark be removed later?
The watermark is drawn into the page content, so casual removal is not possible. It is a deterrent, not cryptographic protection.
What are common watermark texts?
CONFIDENTIAL, DRAFT, SAMPLE, PAID, APPROVED, DO NOT COPY — or your company name and date.
Which opacity should I choose?
Light (15%) keeps documents fully readable and professional. Use Strong (50%) when the deterrent effect matters more than aesthetics.