Protect & sign
Passwords, permissions, redaction, sanitizing, signatures — and stripping the metadata that tracks you.
API · MCPEncrypt PDFProtect a PDF with a user password (AES-256).API · MCPUnlock PDFRemove password protection (the current password is required).On-deviceStrip AI metadata & provenanceRemove AI-generation provenance and identifying metadata from a PDF or image (JPEG/PNG/WebP): C2PA Content Credentials, XMP/EXIF/IPTC AI markers (incl. IPTC DigitalSourceType trainedAlgorithmicMedia), generator Software/Creator tags, EXIF GPS and device data. Metadata only — content and pixels are never modified, image pixels are not re-encoded, and pixel-embedded invisible watermarks (e.g. SynthID) are NOT removed: they live in the image data itself, not in metadata. The result reports exactly what was found and removed, by category.On-deviceSanitize PDFStrip metadata (incl. XMP), JavaScript, embedded files/attachments, document actions and link/file actions — the safe-to-share version of a PDF.On-deviceSign PDF (visual signature)Place a visual signature on a PDF: upload the signature image as the SECOND file, or let the signer name be typeset. A self-signed certificate (SHA-256 fingerprint) is generated and recorded in the document metadata. This is an electronic signature stamp + certificate record — not a qualified/PKI document signature.API · MCPSet PDF permissionsEncrypt a PDF with an owner password and fine-grained permissions (print, copy, modify, annotate, ...).API · MCPRedact PDFTRUE redaction: content under the regions is removed from the file (not just covered). Modes: explicit regions, literal texts, and/or PII patterns (emails, SSNs, payment-card numbers — Luhn-checked).API · MCPSign with certificate (PAdES)Apply a real cryptographic PAdES signature with your PKCS#12 certificate (.p12/.pfx, uploaded as the second file). Verifiable in any conforming PDF reader. Note: the certificate password is a job parameter, handled exactly like the encrypt/decrypt passwords.
Keep exploring
All of it is free — see the features tour for how the web tools, MCP server and API fit together, and the pricing page for the (very short) usage policy.