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Edit CBZ File

Edit Header

When viewing an issue in the File Manager or Collection, click the menu and select Edit File (or Edit CBZ) to open the in-browser archive editor.

CLU unpacks the archive into an isolated temporary workspace and loads the pages into an interactive visual grid:

Edit Modal

From this interface, you can perform several operations:

Rename and Reorder Pages

Click on any filename to edit it inline. Press ENTER to save the new name. Pages automatically re-sort in the grid according to alphanumeric ordering.

For example, updating a filename to 00b.jpg causes it to sort immediately after 00a.jpg:

Renamed Example

Upload New or Replacement Pages

You can drag and drop image files directly into the editor to add missing pages or replace corrupted covers:

Upload Example

  1. Locate your replacement cover image and drag it into the editor modal.

Upload Example

  1. The image is uploaded, scaled to match the dimensions of the other pages in the archive, and inserted into alphanumeric order.

Allowed Image Formats

Only image files are permitted inside the archive (.jpg, .jpeg, .png, .gif, .webp, .bmp). Non-image files will be rejected upon upload.

Upload Example

  1. Once the replacement image is inserted, delete the old or damaged cover image and save changes.

Upload Example

Crop Images

The built-in crop tool provides precise controls for isolating panel artwork or cover sections from multi-page spreads:

Crop Example

  • <-| Left: Crops and saves the left half of the image as the new cover. The original full spread is retained and repositioned as the second image in the archive.
  • Right |->: Crops the image to the right half and assigns it as the primary cover.
  • Middle: Extracts the center panel for tri-fold covers.
  • Free Crop: Allows click-and-drag freeform cropping directly on the canvas:
    • Click and drag to define the crop area.
    • Hold SPACE to reposition the selection box.
    • Hold SHIFT to lock standard comic page aspect ratios.

Freeform Crop

Preserves Original Images

Crop operations preserve the original un-cropped spread inside the archive, ensuring you can undo an accidental crop by removing the cropped page and restoring the original.

Delete Pages

Click the icon on any page card to delete it from the archive. This is useful for stripping non-story pages, advertisements, or scanner promotional cards.

Delete Page

Immediate Deletion

Page deletions within the editor take effect immediately upon confirmation.

Save Changes

Click Save to repack the archive and clean up temporary files.

Automated Junk File Cleanup

In File Settings, you can configure specific file extensions to be automatically purged whenever a CBZ is edited (e.g. .nfo, .sfv, .db, .DS_Store). Non-image metadata files such as ComicInfo.xml are automatically preserved during repacking.