No, the files do not need to be the exact same size in terms of megabytes (MB) or gigabytes (GB) to use the Compare Version feature in ButtonShift. The comparison tool is designed for functional and visual review, not a byte-for-byte analysis of the file structure.
The version comparison feature, which is specific to video files, focuses on ensuring that the actual content and structure of the file remains consistent or that edits were correctly implemented.
The Comparison Tool Focuses On:
- Visual Alignment: The tool shows two versions side-by-side, allowing the Approver to focus on visual changes.
- Timestamp Accuracy: In Videos, the feature lets one click on past feedback, which jumps both versions to the exact timestamp, ensuring accurate verification of the requested changes.
In summary, as long as the files are valid formats, Video to Video, Image to Image or PDF to PDF, the comparison tool will work effectively, regardless of any differences in their file size.

Last modified: January 12, 2026