Thread: Calibre won't side load a zip containing images of different formats to a Kobo
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Old 03-27-2019, 02:56 AM   #3
davidfor
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@ceridwen: You need to have the books in calibre in a format the device supports, or in a format that calibre can convert to a supported format. "zip" is not a supported format on most devices and definitely not on a Kobo device.

If you do try to send a zip file to a Kobo device, calibre will try to convert it. That conversion will be to look inside the zip file for a valid book. If there is one, it will be extracted and converted if needed. If there isn't one, you will get an error that calibre cannot convert the zip file. If the zip file is a collection of images, then calibre will not convert it.

But, if the zip file is a collection of images, change the extension to "cbz". Calibre and the Kobo devices will recognise this as a comic book and handle this.

And none of this is "wonky". It is all consistent. Maybe what calibre does when converting a zip file isn't obvious, but it is consistent.
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