100% offline document processing
Redact PDFs on your PC — content never leaves it
Mark areas by hand, search exact text or regular expressions, or review suggestions for common sensitive details such as email addresses and account numbers. Secure Flatten burns your marks into an image-only PDF, then RedactDesk checks every export and shows you the individual results.
How it works
- Open locally.Select a PDF on your own PC. Opening, searching, marking and verifying all run on your device — your documents are never uploaded.
- Mark what must go.Draw rectangles, search literal text or regex with “redact all matches”, and toggle built-in detectors for emails, phone numbers, SSNs, credit cards, IBANs and more. You confirm every mark.
- Export with Secure Flatten.Pages are rendered at your chosen DPI and redaction areas are burned into a new image-only PDF. The output is built fresh: no source text layer, comments, forms or document metadata.
- Verify before sharing.Every export is re-opened and checked automatically — removed strings, metadata, page count and pixel samples — with PASS/FAIL results shown per check. A failed check is reported, and the file is not offered as a finished verified export.
Built for a trustworthy redline
- Local PDF processing
Redaction and verification run on the Windows PC. - Secure Flatten redaction
Pages are rebuilt from rendered images with selected areas burned in. - Review tools
Manual rectangles, text search, regular expressions and configurable detectors. - Automatic export checks
Per-check PASS/FAIL results before you use an export. - Optional verification report
Source/output SHA-256 hashes and per-page redaction counts — without recording the removed content.
Pricing
- Install for free from Microsoft Store.
- Five lifetime export credits, counted per unique source document — re-exporting the same source does not use another credit.
- Opening, reviewing, marking and searching stay available for free after your credits are used.
- RedactDesk Pro is a one-time durable add-on that unlocks unlimited exports. The current price is shown by Microsoft Store.
Good to know
Honest limits.Flattened output is not text-searchable or selectable. Automatic suggestions depend on the PDF’s available text layer; scanned images require manual review and marking. Suggested matches can be incomplete or incorrect, so inspect each page before sharing. Processing invalidates existing document signatures. The verification report is a processing record, not a legal certificate or independent audit. No document upload, usage analytics or crash upload is built into RedactDesk; Microsoft Store connects for purchase and licensing operations, and the optional feedback form sends only what you choose to submit.