Watermark PDF
Add custom text watermarks to all pages of your PDF. Control position, opacity, and font size for professional document protection.
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Maximum file size: 50 MB
Max 50MB per file
What Is This Tool?
Add a custom text watermark to any PDF online with ToolifyPDF's free Watermark PDF tool. Protect your documents, mark them as CONFIDENTIAL, DRAFT, or add your company name — all without installing any software. Toolify lets you control the watermark text, size, opacity, and position. Upload your PDF, customize your watermark, and download the result instantly.
How to Use
Upload Your PDF
Upload the PDF file you want to watermark via drag-and-drop or file picker.
Customize Your Watermark
Enter your watermark text, then adjust font size, opacity, and position.
Apply and Download
Click "Add Watermark" and download the watermarked PDF file.
100% Free
No hidden charges
Files Auto-Deleted
After processing
No Sign-Up
Just upload & go
Any Device
Mobile & desktop
Key Features
Custom Text Watermark
Add any text — company name, CONFIDENTIAL, DRAFT — as your watermark.
Opacity Control
Adjust transparency so the watermark is visible without obscuring content.
Position Options
Place the watermark at the center, corner, or diagonally across each page.
Applied to All Pages
The watermark is automatically added to every page of your document.
Frequently Asked Questions
Can I add an image watermark?
Currently only text watermarks are supported. Image watermark support is planned for a future Toolify update.
Will the watermark be permanent?
Yes. The watermark is embedded into the PDF pages and cannot be easily removed.
Can I control the watermark size?
Yes. You can adjust the font size and opacity to control how prominent the watermark appears.
Does it work on scanned PDFs?
Yes. The watermark is added as an overlay on top of each page, including scanned documents.