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Compare PDF Online

Easily identify differences between two PDF documents. Upload your files to see additions and deletions highlighted instantly.

Compare PDF Differences

Extract text from two PDF files and highlight the differences between them.

1

Original PDF

Upload PDF 1

2

Modified PDF

Upload PDF 2

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The Simplest Way to Compare PDF Documents

Comparing revisions of a document can be tedious. LiteCalculator’s Compare PDF tool automates this by extracting text from your files and running a sophisticated comparison algorithm to highlight every change. Whether you are reviewing a contract or checking homework, our tool makes it easy.

Key Benefits

  • No Server Uploads: Your privacy is guaranteed. All text extraction and comparison happens on your computer.
  • Visual Highlights: Clear red and green highlighting makes it easy to spot changed words at a glance.
  • Supports Large Documents: Efficiently handles multi-page PDFs with high accuracy.
  • Completely Free: No registration, no hidden fees, and no daily limits.

How to Use the PDF Diff Tool

  1. Select Original: Upload the source or "original" PDF in the first box.
  2. Select Modified: Upload the "revised" or "modified" version in the second box.
  3. Compare: Click the "Compare Now" button to start the analysis.
  4. Review: Scroll through the result box. Text shown in red with a strike-through was removed, while text in green was added.

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