Free Online PDF & Document Compare Tool - Word, PowerPoint, RTF & More

How to Compare PDF Files and Documents Online

1. Upload your documents:

   • Drag and drop PDF, Word (.docx, .doc), PowerPoint (.pptx, .ppt), or other document files into the boxes
   • Use the file chooser buttons to select documents
   • Import from Google Drive, OneDrive or public URLs
   • Use sample files to test the tool
   • Non PDF Document files are automatically converted to PDF for comparison

2. Click "Compare" to see differences in multiple views:

   • PDF View: Side-by-side comparison with text changes highlighted
   • Image View: Visual comparison of PDF pages
   • Text View: Plain text comparison showing exact changes
   • Details View: Compare PDF metadata and properties

Features

• 🔍 Real-time text difference highlighting
• 📑 Minimap navigation for quick overview of changes
• 🔄 Synchronized scrolling between documents
• 🎨 Removed content highlighted in red, added in green
• 📱 Support for most PDF versions and formats
• 📄 Multiple document formats (Word, PowerPoint, RTF, etc.) to PDF conversion and comparison
• 💾 Export annotated PDFs with highlights
• 🔗 Share comparison results online
• 🔒 Private, browser-based processing

Advanced Capabilities

• Navigate changes using the minimap sidebar
• Toggle synchronized scrolling for easier review
• Export PDFs with annotations for sharing
• View detailed metadata comparisons
• Convert pages to images for visual comparison
• Extract and compare plain text content

Privacy & Security

• 100% Browser-Based: All processing happens in your browser
• No Server Upload: Files stay on your device unless explicitly shared
• Temporary Storage: Shared comparisons are automatically deleted after expiry
• No Registration: Use all features without an account
• Secure Sharing: Only people with the unique link can access shared comparisons

Document Processing

• Server Conversion: Document files (Word, PowerPoint, RTF, etc.) are converted to PDF format on our servers
• File Size Limits: Server-side processing has file size limitations for optimal performance
• Conversion Limits: Number of document conversions may be limited per session
• Automatic Deletion: Uploaded documents are automatically deleted immediately after PDF conversion
• No Storage: Documents are never stored or seen by anyone - only converted to PDF for comparison
• Secure Processing: All uploads use encrypted HTTPS connections

Privacy Alternatives for Sensitive Documents

For Maximum Privacy:

• Convert Yourself: Use Microsoft Office, LibreOffice, or Google Workspace to convert your documents (Word, PowerPoint, etc.) to PDF format first, then upload the PDFs for comparison
• Desktop App: Download our desktop application which uses your locally installed Office or LibreOffice to convert documents securely on your computer without any server upload
• Text Comparison: Use the main text comparison tool for unlimited DOCX processing in your browser without server upload

Common Use Cases

• Legal document version comparison
• Contract revision review
• Academic paper corrections
• Technical documentation updates
• Research paper modifications
• Educational material updates

Supported File Types

PDF Documents

• PDF Documents (.pdf)
• Scanned PDFs
• Password-protected PDFs (after unlocking)

Document Files (Converted to PDF)

• Microsoft Word Documents (.docx, .doc) - converted to PDF on server
• PowerPoint Presentations (.pptx, .ppt) - converted to PDF on server
• OpenDocument Text (.odt) from LibreOffice, OpenOffice
• Rich Text Format (.rtf) documents
• Plain Text Files (.txt)
• HTML Documents (.html, .htm)
• XML Files (.xml)
• Compatible with Google Docs, LibreOffice, Microsoft Office formats

Note:

• Document files (Word, PowerPoint, RTF, etc.) are converted to PDF format on our servers for comparison
• File size and conversion limits apply for server-side processing
• For sensitive documents: Convert to PDF yourself using Office/LibreOffice before uploading
• Maximum privacy: Use our desktop app for local document conversion
• For unlimited DOCX text processing, use the main text comparison tool
• You can always copy and paste text manually from any file format

Tips for Best Results

1. Use PDFs with selectable text for best comparison
2. Enable sync scroll for long documents
3. Use the minimap to quickly navigate changes
4. Export with annotations for offline sharing
5. Check image view for visual changes
6. Use text view for content-only comparison
7. Privacy tip: For sensitive documents, convert files (Word, PowerPoint, etc.) to PDF using your local software before uploading