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" / -->Your donation will support ongoing availability and give you access to the PDF version of this book. Desktop Survival Guides include Data Science, GNU/Linux, and MLHub. Books available on Amazon include Data Mining with Rattle and Essentials of Data Science. Popular open source software includes rattle, wajig, and mlhub. Hosted by Togaware, a pioneer of free and open source software since 1984. Copyright © 1995-2022 Graham.Williams@togaware.com Creative Commons Attribution-ShareAlike 4.0
