Guide

Compare two PDFs or documents, line by line

Need to compare two PDFs or documents and see what changed between versions? Drop both in and the engine reads and diffs them line by line — flagging what matched, what changed, what was added and what was removed — in any language.

What changed between two versions? compare two PDFs, contracts or reports and get a clear, labelled breakdown of every difference — no manual read-through, no track-changes gymnastics.

How it works

1 · Drop two documentsTwo PDFs or documents — term sheets, contracts, reports.

2 · CompareThe engine reads both and diffs them line by line.

3 · See changesMatched, added, removed and changed lines, clearly labelled.

What you get

Line-by-line diff — every difference between two versions, clearly categorised.
PDFs & documents — compare PDFs, and documents where the content isn't a table.
Any language — works across languages and scripts, not just English.
Confirmations & statements — compare a generated confirmation vs a counterparty statement.
Policy & contract tracking — see what changed between two contract or policy versions.
No code — upload and compare — no tooling to set up.

Document compare vs. reading side by side

Reading two document versions side by side is slow and error-prone, and track-changes only helps inside one editor. A document compare tool reads both files and diffs them line by line — matched, added, removed and changed — so you see every real difference in seconds.

This is one of 20+ checks in AI data validation — the same engine also runs reconciliation, data quality, profiling, document compare and governance. For sensitive data, the full dataset never leaves your server; see the security page.

FAQ

How do I compare two PDF files?

Drop both PDFs into AI DataValidator and tick 'compare as documents'. It reads both files and diffs them line by line, flagging what matched, what changed, what was added and what was removed — no code.

Can it compare contracts or documents, not just PDFs?

Yes. It compares PDFs and documents where the content isn't tabular — term sheets, contracts, policies and reports — showing every line-level difference between two versions.

Does it work for non-English documents?

Yes. Document compare works across languages and scripts, so you can diff documents that aren't in English.

Is this different from comparing two data files?

Yes — this is a line-by-line document diff for PDFs/text, while the same platform also reconciles tabular data files (CSV/Excel) record by record.

Compare two documents free

See exactly what changed between two PDFs or documents — line by line, in any language.

Start free — 7 days, full access