Why Does ImageMagick Fail to Convert PDFs with an \'Authorization\' Error?

ImageMagick Conversion Authorization Issue

In an attempt to convert a PDF to an image using ImageMagick, you may encounter an authorization error, particularly: "convert-im6.q16: not authorized `temp2.pdf' @ error/constitute.c/ReadImage/412." This indicates that ImageMagick lacks the necessary permissions to access the PDF file.

To resolve this issue, the ImageMagick policy.xml file needs to be modified:

Editing policy.xml

1. Locate the ImageMagick policy.xml file (typically found in /etc/ImageMagick/policy.xml).
2. Uncomment the following line (or change rights="none" to rights="read|write"):

<policy domain="module" rights="read|write" pattern="{PS,PDF,XPS}" />

Note: In some systems, the "domain" may be "coder" instead of "module."

Other Considerations

• Make sure your ImageMagick installation includes the Ghostscript delegate (version 9.25 or later).
• If you still encounter problems, try installing the ImageMagick-devel package for your system.
• Check the permissions of the PDF file itself to ensure that ImageMagick has read access.

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