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DocFather Compare Documents
What it is
DocFather Compare Documents is a web tool for finding content differences between two document versions. It compares PDFs or DOCX files, aligns their contents, and marks additions in green and removals in red; edited lines are identified down to the word. DOCX comparison works without a Word license or Track Changes. It can detect changes to paragraphs, sentences, numbers, and dates, but does not include formatting-only differences. For a mixed-format pair, the service recommends converting the Word file to PDF first. Scanned documents need OCR to add a text layer before comparison. The comparison tools are described as free, and the pricing page lists file tools free for files up to 300 MB; the stated maximum file size is 50 MB. New web accounts receive 250 welcome credits. Files are uploaded over an encrypted connection and automatically deleted from storage within 24 hours. The 7-day free trial is offered in the iOS app; web users subscribe directly. The Free plan is listed as free.
For and against
For
- Compares PDF and DOCX documents.
- Highlights additions, removals, and edited lines.
- DOCX comparison needs no Word license.
- Files are automatically deleted within 24 hours.
Against
- Formatting-only differences are not detected.
- Scanned documents need OCR first.
- Mixed-format pairs may require conversion.
- The 7-day trial is in the iOS app.
The verdict
DocFather makes word-level content changes visible across PDF and DOCX pairs, while leaving formatting differences out. Its web comparison is described as free, with a 50 MB stated maximum file size and encrypted uploads that are automatically deleted within 24 hours.
Who it suits
It suits people who need to review content changes between PDF or DOCX versions. Scanned files need OCR first, and users comparing different formats may need to convert a Word document to PDF.
Plans and prices
Free
File tools up to 300 MB · 250 welcome AI credits · merge, split, compress, rotate, protect, unlock, sign and conversions · no watermarks
Read 15 Oct 2026 · docfather.com
2,500-credit top-up
2,500 credits · Pro subscribers
Read 15 Oct 2026 · docfather.com
10,000-credit top-up
10,000 credits · Pro subscribers
Read 15 Oct 2026 · docfather.com
Lite annual
12,000 credits provided upfront
Read 15 Oct 2026 · docfather.com
Pro annual
30,000 credits provided upfront · top-up packs available
Read 15 Oct 2026 · docfather.com
On the record
- AI engine
- DocFather says its AI tools are powered by Claude.docfather.com · read 15 Oct 2026
- AI file limits
- The terms state that AI features accept files up to 300 MB and 300 pages, while AI editing is limited to 50 pages.docfather.com · read 15 Oct 2026
- App Store availability
- Apple lists DocFather as a free iPhone productivity app with in-app purchases.apps.apple.com · read 15 Oct 2026
- App Store developer
- Apple identifies Radzhab Radzhabov as the developer and seller.apps.apple.com · read 15 Oct 2026
- App Store prices
- Apple lists in-app purchases of $4.99 weekly or $59.99 yearly for Lite and $9.99 weekly or $149.99 yearly for Pro.apps.apple.com · read 15 Oct 2026
- App Store privacy disclosure
- Apple’s disclosure says the app may link contact information, user content and a user ID to identity, and may collect usage data and crash data not linked to identity.apps.apple.com · read 15 Oct 2026
- App Store size
- The listed iPhone app size is 9.2 MB.apps.apple.com · read 15 Oct 2026
- Browser operation
- The service runs in a modern browser and says there is nothing to install; an iOS app provides the same tools on a phone.docfather.com · read 15 Oct 2026
- Company address
- The published registered address is Office 3906, 39/F, The Center, 99 Queen's Road Central, Central, Hong Kong.docfather.com · read 15 Oct 2026
- Company identity
- DocFather is operated by IT Nest Limited, a private company limited by shares registered in Hong Kong.docfather.com · read 15 Oct 2026
- Company registration
- The privacy policy gives Hong Kong business registration number 77297048 for IT Nest Limited.docfather.com · read 15 Oct 2026
- Difference display
- Added text is shown in green, removed text in red, and edited lines are marked at word level.docfather.com · read 15 Oct 2026
- Document vault
- The vault stores documents encrypted, indexes their text and lets users ask questions in plain language.docfather.com · read 15 Oct 2026
- File retention
- Processed files and results are automatically removed from storage within 24 hours.docfather.com · read 15 Oct 2026
- Formatting limit
- The comparison deliberately ignores changes that affect formatting only.docfather.com · read 15 Oct 2026
- Free access
- The comparison tools are presented as free and can be used without an account or watermark.docfather.com · read 15 Oct 2026
- Free use
- The comparison tools are described as free, and the pricing page says file tools are free for files up to 300 MB.docfather.com · read 3 Oct 2026
- How changes appear
- Additions are shown in green, removals in red, and edited lines are marked to the word.docfather.com · read 3 Oct 2026
