How to use it
- Add your PDF
- Type the text or pick a logo
- Download the watermarked PDF
Questions people ask
Why watermark ID copies?
Writing the purpose, like "For bank KYC only", on Aadhaar or PAN copies makes them harder to misuse.
Is Watermark PDF really free?
Yes. Every PDFtoOne tool is free with no login, no daily limit and no watermark. The site is supported by ads.
Is there a file size limit?
We set no limit. Files are processed by your own device, so the only limit is its memory. Computers handle very large files; phones handle most everyday files easily.
Does it work offline?
Yes. Once you have used a tool, it keeps working without internet. You can also install PDFtoOne as an app.