Unlock, protect, sign, redact, and compare PDFs through clean contracts that can later attach to specialized security engines.
Remove password protection from a PDF when you provide a valid user or owner password.
Encrypt a PDF with a user password and optional owner password using standards-aware PDF encryption.
Apply a visible signature block to a PDF with signer, reason, and location details.
Safely redact a selected region by rasterizing the affected pages and removing the underlying searchable content in that area.
Compare two PDFs by page count, page size, raw file hash, and rendered page output.