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Apply high-clarity diagonal or horizontal text watermarks across document pages in browser memory.
Files are processed entirely in your browser. Nothing is uploaded.
Choose the document to watermark.
Type your text (e.g., 'CONFIDENTIAL', 'DRAFT') and set opacity, color, and angle.
Export the document with permanent watermark layers stamped across all pages.
All PDF processing is executed locally in your browser memory via WebAssembly and Web Workers. Your files are never uploaded to any remote server.
Watermarks are compiled directly into the PDF content streams, making casual removal impossible in standard readers.
Add page numbers, headers, and footers to PDF documents. Customize numbering format, coordinates, and margins with zero server uploads.
Annotate PDFs in your browser with text notes, rectangles, circles, and freehand pencil markings. Features undo/redo and zero uploads.
Encrypt PDF documents with AES-256. Set user and owner passwords and restrict printing or copying, with zero uploads.
Redact confidential text, SSNs, credit cards and emails. Covered text is deleted from the PDF content streams and the export is verified, with zero server uploads.