Quote:
Originally Posted by ilovejedd
Are you using JPEG metadata to set the orientation? Perhaps Kobo's software doesn't respect that. No idea what command line you should use in ImageMagick, though. I always use IrfanView for image processing.
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Well that turns out to be it. It is 2019 and EXIF rotation has been in use for well over a decade.
I had to add a 3rd command to my batch file so now it is
magick montage [1-2].jp* -tile 2x1 -geometry +0+0 out.jpg
magick mogrify -rotate "270" out.jpg
magick mogrify -auto-orient out.jpg
Tested it out with one of the images and the Kobo sees it fine now. Now I just have to go though all of my Manga and go again. I kind of wish I could do what my Kindle did when it recognized two page spreads but it is not as effective as showing the double page first.
Edit:
Just in case someone else comes across this thread here is a simplified batch file that will merge two pages without having to rename them prior to running the file.
magick mogrify -flop *.jp*
magick montage *.jp* -tile 2x1 -geometry +0+0 out.jpg
magick mogrify -flop *.jp*
magick mogrify -rotate "270" out.jpg
magick mogrify -auto-orient -quality 85% out.jpg