Were you trying to convert a PDF and get this message?:
Convert-im6.q16: attempt to perform an operation not allowed by the security policy `PDF' @ error/constitute.c/IsCoderAuthorized/413.
convert-im6.q16: no images defined `pts-time.jpg' @ error/convert.c/ConvertImageCommand/3258.
Solution:
Find the "PDF" pattern and set it like below:
........
You'll have to edit the policy.xml file to fix this:
convert -density 300 output.pdf agreement.jpg
convert.im6: not authorized `output.pdf' @ error/constitute.c/ReadImage/454.
convert.im6: no images defined `agreement.jpg' @ error/convert.c/ConvertImageCommand/3044.
sudo vi /etc/ImageMagick*/policy.xml
Change
policy domain="coder" rights="no........