The on-device redaction alternative to Adobe Acrobat.
Silo Redact is a 100% on-device PDF redaction tool for macOS and a one-time-purchase alternative to subscription PDF suites. The current build provides local redaction and verification, including the structured evidence workflow below.
Silo Redact vs Adobe Acrobat.
on-device · vs cloud| Dimension | Silo Redact | PDF suites (Adobe Acrobat) |
|---|---|---|
| Where it runs | On your Mac (offline, loopback only) | Desktop app + Adobe cloud services |
| Pricing | One-time $19.99 | Monthly subscription |
| Verification artifact | Separate report with extraction, OCR, metadata, carve, and SHA-256 checks | Workflow varies by suite |
| When removed text survives | Named -FAILED-DO-NOT-SEND, never presented as a redaction | Workflow varies by suite |
| Detection review | Page-linked source boxes, confidence, reason, and origin | Product-specific |
| Metadata | Purged, then audited after export | Product-specific |
| Account | None required | Adobe ID |
| Works without internet | Yes | Cloud features need a connection |
Cloud column reflects the typical architecture of Adobe Acrobat and similar hosted tools. Names are trademarks of their owners; not affiliated.
Adobe Acrobat alternative, answered.
Silo Redact · on-deviceThe current build keeps redaction and verification on your Mac, with exact page-linked evidence, an expanded extraction, re-OCR, metadata, carve, and SHA-256 report, and separate PDF and report saves.
No. Detection, burn-in and verification run on your Mac with no account and no data collected. Its only optional network step is a contextual detection download that asks before it starts, and your documents are never part of it.
No. Silo Redact is a one-time $19.99 purchase. Adobe Acrobat Pro, which includes its redaction tools, is a recurring monthly subscription.
It proposes US Social Security, card, bank routing and employer ID numbers, driver's license and passport numbers, emails, phones, dates, postal addresses, form-field values and names, with text recognition for scanned pages. Detection is tuned for English-language documents and US identifier formats, and you review every suggestion before anything is burned in.
Keep your work on your Mac.
Silo Redact: $19.99 one-time · no subscription. No subscription, no account, nothing uploaded — a private, on-device alternative to Adobe Acrobat.