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ImageMagic的convert、mogrify命令报错没有权限convert-im6.q16: not authorized `xxx.pdf’ @ error/constitute.c/ReadImage/412.

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用ImageMagic convert命令将*.pdf文件转换为*.pdf文件。收到以下错误：

convert-im6.q16: not authorized `xxx.pdf’ @ error/constitute.c/ReadImage/412.

编辑文件/etc/ImageMagick-6/policy.xml

policy domain=”coder” rights=”none” pattern=”PDF”
改为
policy domain=”coder” rights=”read|write” pattern=”PDF”

同样道理，如果遇到以下报错：

mogrify-im6.q16: attempt to perform an operation not allowed by the security policy `@t.txt’ @ error/property.c/InterpretImageProperties/3706

也是编辑/etc/ImageMagick-6/policy.xml 这个神奇的文件：

  <policy domain="delegate" rights="none" pattern="URL" />
  <policy domain="delegate" rights="none" pattern="HTTPS" />
  <policy domain="delegate" rights="none" pattern="HTTP" />
  <!-- in order to avoid to get image with password text -->
  <policy domain="path" rights="read|write" pattern="@*"/>
  <!-- disable ghostscript format types -->
  <policy domain="coder" rights="none" pattern="PS" />
  <policy domain="coder" rights="none" pattern="PS2" />
  <policy domain="coder" rights="none" pattern="PS3" />
  <policy domain="coder" rights="none" pattern="EPS" />
  <policy domain="coder" rights="none" pattern="PDF" />
  <policy domain="coder" rights="none" pattern="XPS" />

例如这里是@t.txt 报错，对应的就是修改pattern=”@*”这一行，把none改为read|write 。

同样，如果其他例如pdf的报错，Xps的报错，把none改为“read|write”就ok了。