Watermark PDF
Stamp a custom text watermark across every page of your PDF — opacity, color and angle.
📄 · pages
Live preview — page 1
100% private — watermarked in your browser, never uploaded.
Why you’ll love Watermark PDF
Instant & free
No signup, no paywall, no limits — Watermark PDF works the moment the page loads.
Completely private
Everything runs in your browser. Nothing you enter is ever uploaded or stored on a server.
Works on any device
Fully responsive and touch-friendly — use it on your phone, tablet or desktop.
Never uploaded
Your files are processed entirely in your browser — they never touch a server.
How to use it
Open it
No download and no login — the tool is ready right at the top of this page.
Use it
Enter your details or start interacting. Everything updates live as you go.
Get your result
Copy, download or share your result in a single tap. That’s it.
About Watermark PDF
Add a watermark PDF stamp to every page of your document in seconds. Our free tool lets you customize the text, opacity, color, and angle to suit your needs. Whether you're marking drafts, protecting intellectual property, or adding branding, watermarking your PDF takes just a few clicks—no account required.
Place text watermarks diagonally or at any angle across your PDF pages. Control the transparency level to keep your document readable while making the watermark visible. Choose any color for the text to match your branding or visibility needs. The tool works entirely in your browser, so your file never leaves your device.
Watermark PDF files securely and instantly with this straightforward online utility. Upload your PDF, set your watermark text and styling, and download the result immediately. Perfect for protecting work-in-progress documents, marking sensitive files as confidential, or stamping approvals. Free, fast, and completely private.
Popular uses
Frequently asked questions
Yes, this tool is completely free. There are no hidden charges, subscriptions, or limits on how many PDFs you can watermark. Upload your file, customize your watermark, and download—no account or payment required.
Upload your PDF file to the tool, enter your watermark text, and adjust the opacity, color, and angle as needed. Click the watermark button, and your file will be processed in seconds. Download your watermarked PDF instantly.
Yes, you have full control over the watermark appearance. Adjust the opacity to make it subtle or bold, choose any color, and set the angle to display the text diagonally or horizontally. This lets you stamp PDF files exactly how you want them.
No. Your file is processed entirely in your browser and never uploaded to a server. Your PDF stays on your device throughout the watermarking process, ensuring complete privacy. The file is yours alone.
Watermark PDF is 100% free — no signup, no watermarks and no usage limits. It’s one of 200+ free tools we build and give away.
No — everything happens locally in your browser, on your device. Your PDFs and images never leave your computer, so even sensitive documents stay completely private.
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