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How-To2026-03-223 min read

How to Compare Two PDF Files — Find the Differences

Two Ways to Compare PDFs


1. Visual Comparison

Go to Compare PDFs — renders both PDFs side by side as images.


2. Text Diff

Go to PDF Text Diff — extracts text from both PDFs and shows line-by-line differences.


When to Use Which


MethodBest For

|--------|----------|

VisualLayout changes, image differences, formatting Text DiffContent changes, word-level edits, contract revisions

How Text Diff Works


  • Upload two PDFs
  • Text is extracted from both
  • Lines are compared:
  • - Lines starting with + are new (in PDF 2)

    - Lines starting with - are removed (from PDF 1)

    - Lines without prefix are unchanged


    Use Cases


  • Compare contract revisions
  • Check document updates
  • Verify form changes
  • Audit report modifications