1. Convert to compressed format: You can convert comic file into compressed format, such as zip or rar compressed package, to reduce the file size.
2. Adjust the resolution of the comic file: If the resolution of the comic file is too high, it will also cause the file to be too large to import into the Kindle device.
3. Remove irrelevant information: Sometimes, comic files contain a lot of irrelevant information, such as metadata, covers, bookmarks and so on. This will cause the file to become too large.