Protect & sign
Password-protect, unlock, sign or permanently redact a PDF.
10 tools · nothing uploaded
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- Protect PDFA password to open, plus print, copy and edit permissions, encrypted on your device.
- Sign PDFSign, initial and date a PDF, on one page or every page.
- Unlock PDFTake the password off a PDF you own. Nothing is uploaded or stored.
- PopularHomoglyph DetectorSpot a Cyrillic а hiding in a domain name — the phishing you cannot read your way out of.
- ≈Redact PDFPermanently remove sensitive text, not just cover it.
- PopularRemove PDF MetadataStrip the author, title and keywords from both places a PDF stores them.
- Popularsecurity.txt GeneratorRFC 9116, including the Expires field that makes the file valid.
- Unicode Spoofing CheckerCheck text for letters from other alphabets that look Latin.
- Well-Known Security.txt BuilderA vulnerability contact file that scanners will actually accept.
- PopularZero Width Character DetectorFind invisible characters used for watermarking and filename spoofing.