Secure PDF
Protect and sign PDFs for free — add or remove passwords, redact sensitive content, and sign documents. Processed privately in your browser so your files stay yours.
- Protect PDF (Add Password)Add a password to a PDF so only people with the password can open it — strong AES-256 encryption.
- Unlock PDF (Remove Password)Remove a password from a PDF — you'll need to know the current password.
- Redact PDFFind text and cover it with black rectangles — visual redaction. For full text-stream removal, use a paid pro tool.
- PDF/A ConverterConvert a PDF to the PDF/A archival format (best-effort PDF/A-1b / 2b / 3b) by embedding the required metadata and conformance markers.
- PDF/UA ConverterApply PDF/UA accessibility flags — document language, tagged-marked flag, and PDF/UA XMP metadata — for a best-effort accessibility pass.
- Permanent RedactionGenuinely remove sensitive content by rasterising the affected pages and burning black rectangles into the bitmap — the underlying text is gone, not just hidden.
- Confidentiality StampStamp a configurable confidentiality marker (header band + footer band, with optional date and recipient) onto every page of a PDF.
- HIPAA PHI DetectorScan a PDF for likely PHI (protected health information) — SSNs, dates of birth, phone numbers, email addresses, and MRN-shaped strings — with page numbers and remediation suggestions.
- PDF/X-1a ConverterApply best-effort PDF/X-1a metadata — embed XMP conformance, set OutputIntent placeholder, and update producer string for print-pre-flight readiness.
- PDF to PDF/A-1aApply best-effort PDF/A-1a metadata — the strictest accessibility-aware archival profile, requiring tagged structure (best-effort claim).
- PDF PII DetectorScan a PDF for SSNs, credit-card numbers, email addresses, and phone numbers — report locations with redaction-ready coordinates so you can target a redaction pass.
- Redact PDF by PatternProvide a regex; every match is rasterised over with a black box on each page. Catch SSNs, internal codes, names, anything that follows a stable pattern.
- Scrub PDF MetadataStrip author, title, subject, keywords, creator, producer, creation date, and modification date from a PDF — for sharing externally without leaking who made it or when.
- Redaction Comparison DemoGenerate a 2-page demo PDF showing the difference between visual redaction (rectangles drawn over text) and permanent redaction (page rasterised) — see why the difference matters.