Skip to content

Split File

The Split File tool allows you to deconstruct omnibus archives, digital trade paperbacks, or multi-issue collections into individual, single-issue CBZ archives. This ensures each issue can be indexed, read, and matched individually within your library.

Format Support

Split File operates on CBZ archives. To split a CBR file, first convert or rebuild it as a CBZ using Convert Directory or Single File Rebuild.

How to Split an Archive

  1. In the File Manager, locate the multi-issue CBZ, open the per-file dropdown menu, and select Split File.
  2. CLU unpacks the archive in memory and automatically analyzes page image filenames (such as Series 003 - 0001.jpg) to detect issue boundaries.
  3. The interface opens an interactive page grid with detected groups:

Split File grouped page grid

Within this editor, you can:

  • Adjust boundaries: Move demarcation lines to set exactly where one issue ends and the next starts.
  • Merge or add groups: Combine erroneously split pages or manually insert boundaries that automated detection missed.

  • Set titles: Rename each detected issue prior to generating the new files.

  • Once the groupings and issue names are set, click Commit. CLU generates clean, image-only CBZ files for each issue and saves them into a new series subfolder.

Split File result

File Safety

Original File Preserved

Split File does not alter or overwrite the source archive. It writes separate new CBZ archives into a new series subfolder. You can inspect the resulting issues and choose whether to archive or delete the original source file.