Watermark PDF
Add a diagonal text watermark to every page of your PDF. Processed entirely in your browser.
Drag & drop your PDF file here
or click to browse
Supported format: PDF
Your file never leaves your browser
Custom Text
Enter any watermark text — CONFIDENTIAL, DRAFT, your company name, or anything else.
Customisable Style
Choose the colour, opacity, and font size to get the exact look you need.
Browser-Based
Your PDF never leaves your device. All processing happens locally in your browser.
How to Watermark a PDF
1
Upload Your PDF
Click the upload area or drag and drop your PDF file.
2
Customise the Watermark
Enter your watermark text and adjust the colour, opacity, and size.
3
Download the Result
Click Add Watermark, then download your watermarked PDF.