Add Watermark to PDF
Stamp a text watermark across every page of your PDF. Customize the text, opacity, font size, and angle. Everything runs in your browser — your files are never uploaded.
100% Private — Your files are processed entirely in your browser and never leave your device.
Drag & drop files here or click to browse
Max file size: 100.0 MB
How to Add a Watermark to a PDF
1
Upload your PDF
Drag and drop or click to select the PDF file you want to watermark.
2
Customize your watermark
Enter your watermark text (e.g., "CONFIDENTIAL" or "DRAFT") and adjust the opacity, font size, color, and position to your liking.
3
Apply and download
Click "Add Watermark" and download your watermarked PDF. The watermark appears on every page. Your original file is never modified.