Free Watermark PDF
Preview and add text, logo, or combined watermarks with precise, mosaic, page-range, layer, and batch controls. The work happens on your device, so your document never enters an upload queue.
Choose PDF files
Drop files here, or choose them from your device.
Sign in to save and reopen documentsNo artificial page or file-size limits · nothing is uploadedHow it works
- Start with one or more PDFs or the local mixed-page sample, then preview any page
- Use text, a locally normalized logo, or both, with reusable placeholders, typography, color, opacity, rotation, and scale
- Place one mark in nine positions or exact percentage coordinates, or build a page-filling mosaic over or behind content
- Choose all, odd, even, or custom pages and download checked individual PDFs plus a ZIP for a batch; signed PDFs are protected from invalidating edits
Private by default
This tool runs inside your browser with open-source PDF libraries. Files are not sent during processing. Results disappear when you close the page unless you download them or explicitly choose Save to Bookify.
