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Highlights vs KDiff3

Professional comparison and analysis to help you choose the right software solution for your needs.

Highlights icon
Highlights
KDiff3 icon
KDiff3

Highlights vs KDiff3: The Verdict

⚡ Summary:

Highlights: Highlights is a PDF annotation and note taking app for Windows, Mac, iOS and Android. It allows users to highlight, underline, strikethrough, add text notes, shapes and freehand drawings to PDF documents. Key features include organization of annotations by color category and easy export of notes.

KDiff3: KDiff3 is a free open source diff and merge tool for Windows, Mac, and Linux. It allows users to compare files and directories, shows differences in side-by-side and inline layouts, and helps merge changes between versions. KDiff3 supports Unicode, auto-detection of encodings, and editing actions during merges.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Highlights KDiff3
Sugggest Score — —
Category Office & Productivity Development
Pricing — Free

Product Overview

Highlights
Highlights

Description: Highlights is a PDF annotation and note taking app for Windows, Mac, iOS and Android. It allows users to highlight, underline, strikethrough, add text notes, shapes and freehand drawings to PDF documents. Key features include organization of annotations by color category and easy export of notes.

Type: software

KDiff3
KDiff3

Description: KDiff3 is a free open source diff and merge tool for Windows, Mac, and Linux. It allows users to compare files and directories, shows differences in side-by-side and inline layouts, and helps merge changes between versions. KDiff3 supports Unicode, auto-detection of encodings, and editing actions during merges.

Type: software

Pricing: Free

Key Features Comparison

Highlights
Highlights Features
  • Highlight text
  • Add text notes
  • Draw shapes
  • Strikethrough text
  • Organize annotations by color
  • Export notes
KDiff3
KDiff3 Features
  • Compares and merges text files or directories
  • Supports 2-way and 3-way merges
  • Shows differences in side-by-side or inline layouts
  • Syntax highlighting for many file types
  • Unicode support
  • Auto-detection of character encodings
  • Editing actions during merge
  • Configurable diff engine

Pros & Cons Analysis

Highlights
Highlights

Pros

  • Intuitive interface
  • Available on multiple platforms
  • Useful annotation tools
  • Syncs annotations across devices

Cons

  • Limited free version
  • No OCR text search
  • No collaboration features
KDiff3
KDiff3

Pros

  • Free and open source
  • Available for Windows, Mac and Linux
  • Intuitive and easy to use interface
  • Many advanced features for power users
  • Integrates with version control systems

Cons

  • Limited documentation and support
  • Slower performance with large files
  • No cloud sync or collaboration features

Pricing Comparison

Highlights
Highlights
  • Not listed
KDiff3
KDiff3
  • Free

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Learn More About Each Product

Highlights
Highlights
Reviews, pricing & alternatives →
KDiff3
KDiff3
Reviews, pricing & alternatives →

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