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DNSB · 02-10-2025, 06:13 PM

If you downloaded them on a Mac, they may have been changed from the single zip file container used by ePub to a directory with the unpacked contents of the ePub file.

There are utilities to repack them. One acquaintance recently used a utility called ePub Zip-Unzip 64 to repack a bunch of unpacked epubs. There are several other tools that will do the same task.

02-10-2025, 06:13 PM	#2
DNSB Bibliophagist Posts: 47,053 Karma: 169810634 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	If you downloaded them on a Mac, they may have been changed from the single zip file container used by ePub to a directory with the unpacked contents of the ePub file. There are utilities to repack them. One acquaintance recently used a utility called ePub Zip-Unzip 64 to repack a bunch of unpacked epubs. There are several other tools that will do the same task.