A one-time redaction alternative to Adobe Acrobat Pro.
Silo Redact is a 100% on-device PDF redaction tool for macOS and a one-time-purchase alternative to Adobe Acrobat Pro, whose redaction tools Adobe sells as part of an annual or monthly subscription. After it burns in the redactions, Silo Redact re-opens the export to try to recover the removed text and saves a separate verification report.
Silo Redact vs Adobe Acrobat.
dimension by dimension| Dimension | Silo Redact | Adobe Acrobat Pro |
|---|---|---|
| Where redaction runs | On your Mac, offline | In the Acrobat Pro desktop app |
| Pricing | $19.99 one-time · no subscription | Acrobat Pro or Acrobat Studio subscription, annual or monthly; not in Acrobat Standard |
| Finding what to redact | Proposes findings with page-linked source boxes; you decide each one | You mark content, or search for words, phrases and patterns |
| Hidden data | Purged, then audited after export | Optional Sanitize step when you apply redactions |
| Checking the result | Re-opens the export; separate report with extraction, OCR, metadata, carve and SHA-256 checks | Not among the steps in Adobe's redaction guides |
Adobe Acrobat details checked 2026-10-13 against these public pages. Names are trademarks of their owners; not affiliated.
Adobe Acrobat alternative, answered.
Silo Redact · on-deviceIn Acrobat Pro you mark text and images, or search for words, phrases and patterns, then apply the redactions, choose whether to sanitize hidden information, and save. Silo Redact proposes findings for you to decide one by one, rebuilds each page from redacted pixels, then re-opens the export to try to recover the removed text and saves a separate verification report with the SHA-256 hashes of input and output.
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. On Adobe's plans page, redaction is part of Acrobat Pro and Acrobat Studio, sold as annual or monthly subscriptions; Acrobat Standard does not include it.
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.