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Compress PDF

Annotate PDF

Stamp an ink line or a highlight rectangle on a PDF page by coordinates (PDF units, origin lower-left). Your files never leave your device; all processing is local and private.

Private by design
Your files never leave your device. All processing happens locally in your browser — no uploads, no servers.

Drop your PDF here

or click to choose a file

Your files never leave your device.

Stamp a straight ink line or a highlight rectangle on a PDF page. Coordinates are PDF units, origin lower-left. All processing is local — the file never leaves your device.