Each time I want to convert
jpg file to
convert *.jpg pictures.pdf
I have this error message:
convert: not authorized `pictures.pdf' @ error/constitute.c/WriteImage/1028.
This problems comes from a security update: https://launchpad.net/ubuntu/+source/imagemagick/8:18.104.22.168-7ubuntu5.13
Someone reported it as a bug: https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1796563
As a temporary fix, I edited
/etc/ImageMagick-6/policy.xml and changed the PDF rights from
read|write there. Not sure about the implications, but at least it allows me to get things done.