Upload a forwarded or leaked copy. If it was made with our free per-recipient watermark tool, we read its invisible fingerprint and tell you whose copy it was.
In HelpRange every reader sees their own e-mail on every page, and you see exactly who opened what. Revoke access in one click.
Send every recipient their own copy with the free per-recipient watermark tool – the visible e-mail deters forwarding, and the invisible fingerprint identifies the source if the file is passed on anyway.
Each personalised copy from our watermark tool carries an invisible, encoded recipient code inside the file. Only this tool can read it back.
No – the invisible fingerprint lives inside the PDF file. The visible e-mail watermark is what remains on prints and screenshots.
No – it is analysed in memory and not stored.