ImageMagick security policy 'PDF' blocking conversion

pdf imagemagick imagemagick-convert
T. Zack Crawford picture T. Zack Crawford · Oct 25, 2018 · Viewed 89.4k times · Source

The Imagemagick security policy seems to be not allowing me perform this conversion from pdf to png. Converting other extensions seem to be working, just not from pdf. I haven't changed any of the imagemagick settings since I installed it... I am using Arch Linux, if the OS matters.

user@machine $ convert -density 300 -depth 8 -quality 90 input.pdf output.png
convert: attempt to perform an operation not allowed by the security policy `PDF' @ error/constitute.c/IsCoderAuthorized/408.
convert: no images defined `output.png' @ error/convert.c/ConvertImageCommand/3288.

Answer

Stefan Seidel picture Stefan Seidel · Nov 6, 2018

Well, I added

  <policy domain="coder" rights="read | write" pattern="PDF" />

just before </policymap> in /etc/ImageMagick-7/policy.xml and that makes it work again, but not sure about the security implications of that.

Related questions

imagemagick wand save pdf pages as images

I would like to use imagemagick Wand package to convert all pages of a pdf file into a single image file. I am having the following trouble though (see comments below which highlight problem) import tempfile from wand.image import …

Read More
Convert PDF to image with high resolution

I'm trying to use the command line program convert to take a PDF into an image (JPEG or PNG). Here is one of the PDFs that I'm trying to convert. I want the program to trim off the excess white-space …

Read More
Convert PDF to PNG using ImageMagick

using ImageMagick, what command should i use to convert a PDF to PNG? I need highest quality, smallest file size. this is what I have so far (very slow by the way): convert -density 300 -depth 8 -quality 85 a.pdf a.png …

Read More