When converting to the format cals incorrectly filled field DocClass (in place doccls written docls).
http://www.fileformat.info/format/cals/ ... MYID.3.1.7
Converting to CALS
Re: Converting to CALS
You are correct, we write 'docls' instead of 'doccls'. I just pushed a patch to our git repository to fix this. This will be resolved in the next version of ImageMagick (6.9.3-2).