66.5 PDF Conversions
20220710
ImageMagick provides considerable functionality for image conversion, including converting from pdf to png.
To convert from pdf to png a -denisty
of
300 and -resize
50% seems to work well:
This may fail due to an ImageMagick security policy when the GhostScript interpreter is being used as in the handling of pdf files.
$ convert my.png my.pdf
convert-im6.q16: attempt to perform an operation not allowed by the security policy `PDF' @ error/constitute.c/IsCoderAuthorized/426.
You may like to research the risk and then override the policy by
editting /etc/ImageMagick-6/policy.xml
to comment out the
appropriate policy line:
<!-- policy domain="coder" rights="none" pattern="PDF" / -->
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