Add text watermarks to your PDF pages with customizable positioning, rotation, opacity, and page scope.
Last updated: April 2026 | By Portate Team
PDF files only
Watermark PDF allows you to add text watermarks to your PDF documents directly in your browser. Customize the watermark text, position, size, opacity, rotation, and apply it to all pages or specific pages.
All processing happens locally. Your PDF data never leaves your computer.
Click the upload area or drag your PDF file into the tool.
Set the watermark text, font size, color, and opacity.
Choose position, rotation, margins, and offsets for fine-tuning.
Apply to all pages, specific pages, or use a custom page list.
Click Watermark PDF to process and download your watermarked PDF.
Apply watermarks to all pages, only the first page, only the last page, or custom page ranges such as 1,3,5-8. Fine-tune placement with offsets, margins, and rotation controls.
Subtle Watermarks
Use low opacity (0.2-0.4) and larger text size for visible yet non-intrusive watermarks.
Diagonal Placement
Use diagonal position for professional-looking watermarks that don't interfere with content.
Only text watermarks are supported. You can customize font size, color, and opacity.
Yes. Use the Custom Pages option to specify pages like 1,3,5-8.
Yes. Choose first, last, or custom pages to control exactly where the watermark appears.
Opacity controls watermark visibility. 0=invisible, 1=fully opaque. Use 0.2-0.5 for subtle marks.
Yes. The rotation parameter sets degrees. Default 45° creates a diagonal watermark.
Top, middle, and bottom positions with left, center, or right alignment. Plus a diagonal option.
Yes. All processing happens locally in your browser. Your files never leave your computer.
Yes. The tool runs in your browser without requiring any desktop installation.
No. This tool supports text watermarks only, which keeps the workflow simple and fast.
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