Add Watermark to PDF
Add diagonal text watermarks to PDF
Drop a PDF file
🔒 Files never leave your device
How it works
- 1Upload a PDF
Drop or select your PDF file.
- 2Customize the watermark
Set text, opacity, angle, size and color.
- 3Download
Save the watermarked PDF.
About Add Watermark to PDF
Add a text watermark to every page of a PDF — customize text, opacity, angle and color. All processing happens in your browser. Add Watermark to PDF on DashConvert runs entirely inside your browser using modern JavaScript APIs — no server ever sees your files. That means faster conversions, complete privacy, and no upload limits.
Whether you need to add diagonal text watermarks to pdf for work, study, or personal use, this tool is free to use as many times as you need. There are no watermarks, no sign-up, and no ads inside your documents.
Frequently asked questions
Can I remove a watermark later?
Text watermarks added to page content are part of the PDF and cannot be easily removed.