Watermark & Page Numbers PDF
Stamp custom diagonal text watermarks (CONFIDENTIAL, DRAFT, COPY) and automatic 'Page X of Y' numbering across your PDF locally.
Zero Server Uploads
Drop a PDF file to add watermark or page numbers
All stamping and numbering executes 100% inside your browser memory.
Processed locally in browser memory
How to use this tool in 3 simple steps
1. Zero Server Uploads
Documents are parsed, edited, and rendered locally in your browser memory. Files never touch external storage.
2. Instant Local Speed
Powered by compiled WebAssembly and native HTML5 canvas engines. Processing begins immediately with zero queue latency.
3. Universal Portability
Runs seamlessly across modern browsers on macOS, Windows, Linux, Android, and iOS without native software installations.