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PDF · up to 100.0 MB per file · single file
About Watermark PDF
Add text or image watermarks to PDF pages with opacity, rotation, and position controls. Mark documents as draft, confidential, or branded. OyoPdf Watermark PDF runs in your browser.
Watermarks deter unauthorized sharing and clarify document status before final release.
How to watermark pdf
- Upload your PDF to Watermark PDF.
- Configure text or image watermark, opacity, and placement.
- Download the watermarked PDF.
Frequently asked questions
- Is Watermark PDF free on OyoPdf?
- Yes. Watermark PDF is free with no account required for standard use.
- Are my files uploaded to your servers?
- This tool runs in your browser on your device. Your PDF is not uploaded to our servers for processing.
- What is the maximum file size?
- Browser-local tools support PDFs up to 100 MB. Server conversions (Word/Excel/PowerPoint, Compress, Repair) support up to 20 MB per file.
- Is Watermark PDF free?
- Yes. Watermark PDF on OyoPdf is free for everyday use with no account required.
- Are my files private?
- OyoPdf is privacy-first. Processing runs in your browser whenever possible so files stay on your device.
- What file size is supported?
- Most tools support files up to 20 MB per upload.