# WatermarkPDF

> Free browser-only tools for watermarking, permanently redacting, signing, merging, splitting, and converting sensitive PDF documents without uploading files.

WatermarkPDF separates its public information site from its private editor. The editor has no upload endpoint, analytics, or third-party scripts, and its Content Security Policy sets connect-src to none.

## Tools
- [Watermark PDF online](https://watermarkpdfonline.com/watermark-pdf-online): Add tiled, border, expiry, or page-specific watermarks without uploading your PDF.
- [Watermark an Aadhaar copy](https://watermarkpdfonline.com/watermark-aadhaar-pdf): Mark an Aadhaar copy with its exact sharing purpose before you send it.
- [Permanently redact PDF](https://watermarkpdfonline.com/redact-pdf-online): Flatten selected areas so hidden text and layers are not left behind.
- [Merge PDF online](https://watermarkpdfonline.com/merge-pdf-online): Combine PDFs and images in the order you choose, entirely in your browser.
- [Split PDF pages](https://watermarkpdfonline.com/split-pdf-online): Export selected pages or separate every page into its own PDF.
- [Sign PDF online](https://watermarkpdfonline.com/sign-pdf-online): Place, resize, and rotate a signature or company stamp locally.
- [Image to PDF](https://watermarkpdfonline.com/image-to-pdf): Turn PNG, JPEG, or WebP images into a shareable PDF.
- [PDF to JPG](https://watermarkpdfonline.com/pdf-to-jpg): Render selected PDF pages as JPEG, PNG, or WebP images.

## Guides
- [How to watermark an Aadhaar copy before sharing it](https://watermarkpdfonline.com/blog/how-to-watermark-aadhaar-copy-before-sharing): A practical checklist for adding a purpose-limited watermark to an Aadhaar copy without uploading it.
- [How to add “For KYC purposes only” to a PDF](https://watermarkpdfonline.com/blog/add-for-kyc-purposes-only-to-pdf): Add a clear KYC-purpose watermark to every PDF page while keeping the file on your device.
- [True PDF redaction versus drawing a black rectangle](https://watermarkpdfonline.com/blog/true-pdf-redaction-vs-black-rectangle): Why covering text visually is not always redaction, and how flattened redaction changes the file.
- [How to sign a PDF without uploading your signature](https://watermarkpdfonline.com/blog/sign-pdf-without-uploading-signature): Place a signature or company stamp locally and avoid leaving a reusable copy on a remote server.
- [How to merge PDFs without uploading them](https://watermarkpdfonline.com/blog/merge-pdfs-without-uploading): Combine PDFs and images locally, reorder pages, and download one finished document.

## Trust and policies
- [Security design](https://watermarkpdfonline.com/security)
- [Privacy policy](https://watermarkpdfonline.com/privacy)
- [Terms of use](https://watermarkpdfonline.com/terms)
- [About WatermarkPDF](https://watermarkpdfonline.com/about)

## Product
- [Open the private editor](https://app.watermarkpdfonline.com)