PDF Watermark
Stamp a text watermark diagonally across every page.
Drag & drop, paste, or click to upload
Single file only · pdf
How to use PDF Watermark
- Upload PDF
- Enter watermark text
- Apply
- Download
About PDF Watermark
PDF Watermark is a free online PDF tool that lets you stamp a text watermark diagonally across every page. It runs entirely in your web browser, so there is nothing to download or install and you never need to create an account. It supports PDF files.
Simply open the tool, add your content, and get your result in seconds. A live preview lets you check the result before you download it.
PDF Watermark is 100% free with no limits, no watermarks and no sign-up. Your uploaded files are processed during your session and are automatically deleted within 10 minutes — we never store your files or any personal data. Popular searches for this tool include Watermark PDF, Add Watermark to PDF.
Features
- ✓100% free with no usage limits
- ✓Works in any browser — nothing to install
- ✓Drag & drop, click, or paste to upload
- ✓Instant live preview of your result
- ✓Supports PDF
- ✓No watermark added to your files
- ✓Mobile, tablet and desktop friendly
Benefits
- ★Save time with fast, one-click processing
- ★No software, no registration and no email required
- ★Your files stay private and auto-delete within 10 minutes
- ★Completely free, with no hidden costs or watermarks
- ★Use it anywhere, on any device with a browser
Frequently asked questions
Is PDF Watermark free to use?
Yes, PDF Watermark is completely free with no usage limits, no watermarks and no sign-up required.
Do I need to install software or create an account?
No. The tool runs entirely in your web browser — there is nothing to download and no account to create.
Are my files safe and private?
Your uploaded files are processed during your session and are automatically deleted within 10 minutes — we never store your files or any personal data.
Is there a file size limit?
You can upload files up to 50 MB each.
Which file formats does PDF Watermark support?
PDF Watermark supports PDF files.
How do I use PDF Watermark?
It takes just a few steps: upload pdf; enter watermark text; apply; download.
Does PDF Watermark work on mobile and Mac/Windows?
Yes. It works in any modern browser on phones, tablets, Windows, macOS and Linux.