Compare Two Documents Side by Side with AI on Mac
Two versions of a contract sit in your inbox.
The Problem
Two versions of a contract sit in your inbox. One is the original, one has the vendor's revisions. You need to know exactly what changed before you sign. Comparing documents manually means reading both versions in parallel, jumping between sections, and hoping you do not miss a clause buried on page 14. Dedicated diff tools work for code but choke on prose and legal language.
How Chapeta Handles This
Attach both documents to Chapeta and ask what changed. It reads both files, identifies the differences, and explains the significance of each change in plain language. For contracts and proposals, it highlights changes that affect obligations, timelines, or money.
How to Compare Two Documents
3 steps to get it done
- 1
Attach both documents
Drag both files into Chapeta's chat. It accepts PDFs, text files, and other document formats. Label them clearly: 'This is the original, this is the revised version.'
- 2
Ask for the comparison
Tell Chapeta what you care about: 'What changed between these two versions?', 'Are there any new obligations or cost changes?', or 'Summarize the revisions.'
- 3
Review the differences
Chapeta returns a structured list of changes: additions, removals, and modifications. For contracts, it flags changes with financial or legal significance.
Example
Compare these two versions of the vendor agreement. Focus on changes to pricing, payment terms, liability, and termination clauses.
## Changes Found (v1 → v2) ### Pricing (Section 4) - Monthly rate changed from $12,000 to **$14,500** (+20.8%) - New line item: 'Platform maintenance fee' at $800/month (not in v1) ### Payment Terms (Section 5) - Payment window changed from Net-30 to **Net-15** (halved) - Late payment penalty increased from 1.5% to **2.5%** per month ### Liability (Section 9) - Liability cap unchanged at $50,000 - New exclusion added: 'indirect or consequential damages' now explicitly excluded ### Termination (Section 12) - Notice period changed from 30 days to **60 days** - Early termination fee added: **3 months of fees** (not in v1) ### Other Changes - 4 minor formatting and typo corrections - No changes to IP, confidentiality, or data handling sections
Without Chapeta
Print both versions. Read them side by side. Manually note differences on paper. For digital comparison, use a diff tool that shows character-level changes but does not explain their significance. Miss the subtle change on page 14 that adds a $2,400/month maintenance fee.
Go Deeper
Jump into the related guide, tool, or skill when you need more depth.
Extract Data from Files with AI
Go deeper on file-based extraction, comparisons, and structured outputs from PDFs and text documents.
Summarize Skill
The reusable summarization workflow pairs well with contract diffs, proposals, and revision review.
File Read Tool
Document comparison starts with direct file access instead of copy-pasting sections into a chat window.
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