Protect Notes
Stop your notes and books being shared on Telegram and WhatsApp. Give every buyer a copy stamped with their own name and phone number, then trace any leak back to its source.
1. Buyers
One buyer per line: Name, Phone, Email (phone and email are optional).
2. Watermark
3. Protection
Passwords and print blocking use standard PDF encryption (AES-256). Most PDF readers respect them, but they can be removed by experts. Flattening plus a personal watermark is the strongest protection.
Preview of page 1 for the first buyer
Found your notes shared online? Select the leaked PDF and we'll show which buyer's copy it is.
How it works
Type or paste buyer names and phone numbers, or import them from Excel.
Tiled or centre watermark, a footer notice, and with Premium: flattening, passwords and print blocking.
Download a ZIP with one named file per buyer, plus a copy log to trace leaks later.
Frequently asked questions
How does the personalised watermark stop piracy?
Every buyer gets a copy with their own name and phone number printed across every page. People are far less likely to share a file that identifies them, and if a copy leaks on Telegram or WhatsApp you can see exactly who shared it.
Can the watermark be removed?
A normal watermark can be removed by an expert with PDF editing software. With Flatten pages (Premium), each page becomes an image with the watermark burned in, so it can't be removed and the text can't be copied.
How do I find who leaked a PDF?
Open the Find who leaked it tab and select the leaked file. LMPure reads the hidden copy ID and buyer details stored in the PDF. If those were stripped, the name and copy ID printed on the pages still show who it belonged to.
Can each buyer get a different password?
Yes, with Premium. Choose "Each buyer's phone number" and every copy opens only with that buyer's own number, which also discourages sharing.
Is my PDF uploaded?
No. Everything happens inside your browser. Your notes and buyer list never leave your computer.