Hidden InkBlog · Guides
Redaction guides, done properly.
Practical, privacy-first guides on removing sensitive information from documents — for individuals, businesses and legal teams.
Guide · Security
How to redact a PDF permanently
Black boxes in PDF editors can be removed and the text copied out. Learn how to permanently destroy redacted content — free, in your browser, nothing uploaded.
Read guideGuide · Privacy
How to redact a bank statement safely
Step-by-step guide to redacting a bank statement for proof of address without exposing transactions — free, in your browser, with nothing uploaded.
Read guideGuide · Identity
How to redact a passport copy
Sharing a passport scan with a landlord, employer or agency? Learn exactly what to black out — passport number, MRZ lines, signature — and how to do it without uploading the scan anywhere.
Read guideGuide · Compliance
GDPR redaction guide
A practical GDPR redaction guide for DSARs, disclosures and document sharing: what counts as personal data, when to redact, and how to prove it with an audit trail.
Read guideGuide · Legal
How solicitors should redact PDFs
A practical redaction workflow for solicitors and legal teams: bundles, disclosure, DSARs and privileged material — with permanent redaction and an audit trail.
Read guideGuide · Privacy
Remove personal data from PDFs
Remove names, addresses, account numbers and IDs from any PDF permanently — free manual redaction in your browser, optional AI detection, nothing stored.
Read guide