Watermark PDF
Add text or image watermarks to your PDF
Related Tools
How to Watermark PDF
Upload Your PDF
Drop a PDF file into the tool.
Customize Watermark
Enter your watermark text and adjust the opacity level.
Download Watermarked PDF
Save the PDF with diagonal text watermarks on every page.
Why use fileGOD?
Custom Text
Enter any watermark message — CONFIDENTIAL, DRAFT, DO NOT COPY, or your brand name.
Adjustable Opacity
Control watermark visibility from subtle (10%) to solid (100%) with a smooth slider.
Private Document Handling
Everything runs in your browser. Confidential documents stay safely on your device.
Add text watermarks to PDF documents directly in your browser. Customize the watermark text and opacity level, and the tool applies a diagonal watermark to every page of your document. Perfect for marking documents as CONFIDENTIAL, DRAFT, or adding your brand name to shared materials. All processing happens locally on your device for complete privacy.