Adobe Acrobat - Using the Compare Documents Feature

Learn how to use the Compare Documents feature in Adobe Acrobat to quickly identify differences between two versions of a PDF document.

Introduction to Document Comparison

The Compare Documents feature in Adobe Acrobat is a powerful tool that allows you to quickly and easily identify the differences between two versions of a PDF. This is particularly useful for tracking revisions, identifying changes made by collaborators, or ensuring accuracy across different versions of a document.

Comparing Documents in Adobe Acrobat

  1. Open Adobe Acrobat on your computer.
  2. Navigate to the Compare Tool:
    • Option 1: Navigate to All Tools > Compare Files.
    • Option 2: You may also find the Compare Files tool in the right-hand pane, depending on your Acrobat version.
  3. Select the Documents:
    • In the Compare Files window, you will see two sections: "Original File" and "Modified File."
    • Click Select File in the "Original File" section and browse to the older version of your document. Click Open.
    • Click Select File in the "Modified File" section and browse to the newer version of your document. Click Open.
  4. Customize Comparison Settings (Optional):
    • Click the gear icon (Settings) to customize the comparison process. Here, you can adjust:
      • Compare: Choose what types of differences to look for (e.g., text, images, format).
      • Compare Only Text: If you only need to compare text, select this option for a faster comparison.
      • Report: Choose how you want the differences to be displayed (e.g., side-by-side, single page report).
      • Character recognition: If you are comparing scanned documents, enable character recognition (OCR) to accurately compare the text.
  5. Click Compare to initiate the comparison.
  6. Review the Comparison Results:
    • Acrobat will analyze the documents and generate a comparison report.
    • The comparison report typically displays the documents side-by-side, with differences highlighted.
    • Use the navigation tools (e.g., "First Change," "Previous Change," "Next Change," "Last Change") to move through the identified differences.
    • Click on a highlighted area to view details about the change.
    • The comparison report may also include a summary of the changes.
  7. Save the Comparison Report (Optional):
    • You can save the comparison report as a PDF file for future reference.
    • Navigate to Menu > Save As and choose a location to save the file.

Understanding the Comparison Results

  • Highlighting: Acrobat uses different colors to indicate different types of changes (e.g., added text, deleted text, replaced text). Refer to the legend in the comparison report to understand the color codes.
  • Pop-up Windows: When you click on a highlighted area, a pop-up window may appear with more details about the change, such as the original text and the modified text.
  • Filter Options: You can filter the results to focus on specific types of changes, such as only text changes or only image changes.

Troubleshooting Common Issues

No Differences Found

If Acrobat reports no differences, double-check that you have selected the correct files and that the comparison settings are appropriate. Consider disabling the "Compare Only Text" option if you are comparing images or formatting.

Comparison Takes Too Long

If the comparison is taking a long time, try reducing the scope of the comparison by selecting the "Compare Only Text" option or by focusing on specific pages or sections of the documents.

Inaccurate Results with Scanned Documents

If you are comparing scanned documents and the results are inaccurate, ensure that character recognition (OCR) is enabled.

Conclusion

The Compare Documents feature in Adobe Acrobat is a valuable tool for anyone who needs to track changes and ensure accuracy across different versions of PDF documents. By following the steps outlined in this article, you can effectively utilize this feature to streamline your document review process.

This guide aims to provide useful information, but as technology changes, interfaces or steps might vary. Please use the 'Comment' button to let us know if anything differs from your experience. Your feedback helps us keep this information accurate. Thank you!



Keywords:
compare documents, acrobat, pdf, differences, version control, revision, track changes, document comparison, file comparison, PDF comparison 
Doc ID:
148786
Owned by:
Jeff P. in Southern Illinois University Edwardsville
Created:
2025-03-04
Updated:
2025-03-11
Sites:
Southern Illinois University Edwardsville