Add Watermark to PDF
Stamp custom text watermarks across all PDF pages with customized opacity and angle.
100% Private & Client-Side
Your files are processed directly on your computer or phone. They are never uploaded to any remote server or stored anywhere.
Upload or drag & drop your files
Files are processed directly in your browser. Supported: .pdf, application/pdf
Browse DeviceHow to use Add Watermark to PDF
Upload your PDF document.
Enter your watermark text (e.g., CONFIDENTIAL, DRAFT, SAMPLE) and adjust opacity.
Click 'Apply Watermark' and download your secured PDF.
Frequently Asked Questions
Can I customize the watermark text and angle?
Yes, you can enter any custom phrase, rotate it (e.g. 45 degrees), customize font size, and adjust transparency so underlying document text remains legible.
Does it apply to every page of the PDF?
Yes, the watermark is precisely centered and stamped on every page in your document.
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