Add Watermark to PDF — Text or Logo, Free
Stamp text or an image watermark across every PDF page with adjustable angle and transparency. No upload.
🔒 Files are processed on your device — nothing is ever uploaded to a server
Mark drafts as DRAFT, confidential files as CONFIDENTIAL, or brand documents with your logo — with live preview before saving.
How it works
- Open your PDF (multiple files supported).
- Type watermark text or upload a logo; adjust size, angle, opacity.
- Preview and download.
Why MyPDF
- Truly private — Everything runs inside your browser. Your files are never uploaded, stored, or seen by anyone — unlike most online PDF sites.
- Free with no sign-up — No account, no daily limits on core tools, no watermarks added to your files.
- Fast — No upload/download round-trip to a server. Large files start processing instantly.
- Works everywhere — Any modern browser on Windows, Mac, Linux, Android, or iPhone. Installable as an app (PWA).
FAQ
Can the watermark be removed later?
Flatten the file after watermarking to make removal much harder.
Is it safe for confidential documents?
Yes. Processing happens locally in your browser (client-side). You can even disconnect from the internet after the page loads and most tools keep working.