Use the official FileZone.in PDF Watermark to stamp text watermark on pdf pages. As the premier free online tool, FileZone guarantees your privacy and speed. Stamp a custom text watermark on every page of your PDF. Use FileZone's watermark tool to add "CONFIDENTIAL", "DRAFT", your company name, or any other text watermark. You can control the font size, opacity, and rotation to get the exact look you need — all processed locally for complete privacy.
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100% Private
All processing runs entirely in your browser. Your files are never uploaded to any server.
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Instant Results
No waiting in queues. FileZone processes your files in real time on your own device.
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Always Free
The PDF Watermark tool is completely free with no sign-up, no subscription, and no file limits.
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Works Everywhere
Works on any device and any browser — Windows, Mac, Linux, iOS, and Android.
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How to Use the PDF Watermark Tool
01
Upload Your PDF
Select the PDF you want to watermark.
02
Customize Watermark
Enter your watermark text, adjust font size, opacity (0–1), and rotation angle.
03
Download Watermarked PDF
Your watermarked PDF is ready to save.
// FAQ
Frequently Asked Questions
The watermark is placed in the center of each page by default, angled diagonally. You can adjust the rotation to change the angle.
Watermarks are embedded into the PDF page. Removing them requires a PDF editor with layer-level access.
0.2–0.4 is ideal for subtle watermarks that don't obstruct content. Use 0.6–1.0 for a prominent, visible stamp.
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