Watermark PDF Free Online — Stamp Text on PDF
Add watermark to PDF free online to brand drafts, protect copyright, or mark confidential agreements without uploading documents to external servers.
Choose or Drop PDF File
100% processed in your browser — files never leave your device
How to Use Watermark PDF — Free in Your Browser
Protecting proprietary drafts, contracts, and confidential financial plans requires clear visual classification. Our add watermark to pdf free tool applies elegant semi-transparent watermarks across your document pages in seconds.
Step-by-Step Instructions
- 1Upload the PDF document you wish to watermark.
- 2Enter your custom watermark text (such as 'CONFIDENTIAL', 'DRAFT', or your company name).
- 3Configure visual options including opacity, rotation angle (diagonal 45° or horizontal), and font size.
- 4Click 'Watermark PDF' and download your secured document.
Everyday Practical Uses
- Stamping 'DRAFT - NOT FOR DISTRIBUTION' across review versions of commercial contracts.
- Marking patient medical records and financial statements as 'CONFIDENTIAL'.
- Applying copyright notices to proprietary training manuals and educational materials.
Helpful Tips
- Use 30% to 40% opacity so the watermark is prominent while keeping background text readable.
- A 45° diagonal angle provides the best deterrence against unauthorized screen clipping.
- Short, capitalized phrases like 'CONFIDENTIAL' yield the cleanest aesthetic.
This tool stamps vector text watermarks; for image-based logos or stamps, use our Add Image to PDF tool.
Your document is stamped purely in your browser's local memory. No files are uploaded to any server.
Frequently Asked Questions About Watermark PDF
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