XnView Software

Only problem remaining is that it doesn't handle case very well.

Output extension is always lower case (unless it is illegal)

Bad:
nconvert -resize longest 150 -o thumbs/IMG_0009.JPG IMG_0009.JPG
Conversion of IMG_0009.JPG into thumbs/IMG_0009.jpg OK

nconvert -resize longest 150 -o IMG_0006.JPEG ...

Thanks, that seems to have fixed it!

It is not obvious from the help info. Might be mentioned in the manual but the link is broken.

In resizing a jpeg file, nconvert is ignoring the extension on the original source file and using 'jpg' instead.
For example:

nconvert -resize longest 150 -o try.jpeg IMG_0132_2.jpeg > /dev/null
Conversion of IMG_0132_2.jpeg into try.jpg OK

The created file is "try.jpg" and not "try.jpeg".

I ...