Protect PDF
Encrypt your PDF with a password to prevent unauthorized access.
Processed locally — we don't upload your files
AdvertisementTop Banner Ad — 728×90
AdvertisementIn-Content Ad — 300×250
Frequently Asked Questions
This tool adds a visible watermark overlay to every page of your PDF. This deters unauthorized copying and clearly marks the document status.
Yes! You can set the text, choose between diagonal or tiled styles, and adjust the opacity from subtle to visible.
Currently this tool adds visual watermark protection. Password encryption requires server-side processing.
Protect your PDF documents by adding watermarks to every page. Choose between a single diagonal watermark or a tiled pattern that covers the entire page. Customize the watermark text, opacity, and style. Common uses include marking documents as CONFIDENTIAL, DRAFT, or DO NOT COPY. All processing happens locally in your browser — your documents never leave your device. The watermark is permanently embedded in the PDF for document protection.
AdvertisementFooter Banner Ad — 728×90