ImageMagick安全策略"PDF"阻止转换 [英] ImageMagick security policy 'PDF' blocking conversion

问题描述

Imagemagick安全策略似乎不允许我执行从pdf到png的转换.转换其他扩展名似乎可以正常工作，只是不能从pdf中转换.自安装它以来，我没有更改任何imagemagick设置...如果操作系统很重要，我正在使用Arch Linux.

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.

推荐答案

好吧，我添加了

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

恰好在/etc/ImageMagick-7/policy.xml中的</policymap>之前，这使其可以再次工作，但不确定其安全性.

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

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