ImageMagick: "convert not authorized" error

[peter_b]

[PROBLEM]
Converting several PNGs into a PDF using Imagemagick, I get the following error:

convert: not authorized `output.pdf' @ error/constitute.c/WriteImage/1028

Although the command is valid, checked, correct and everything:

Code: Select all

$ convert *.png -resize 1920x1920 -compress jpeg -density 150 -units PixelsPerInch -quality 65% output.pdf

• OS is Xubuntu 16.04.3
• ImageMagick: 8:6.8.9.9-7ubuntu5.13

[SOLUTION]
I haven't checked if this approach is correct (lack of time right now), but here's a quick hack:

In "/etc/ImageMagick-6/policy.xml", replace rights "none" with "read|write" for PDF. Like this:

Code: Select all

  <!-- disable ghostscript format types -->
  <policy domain="coder" rights="none" pattern="PS" />
  <policy domain="coder" rights="read|write" pattern="PDF" />
  <policy domain="coder" rights="none" pattern="EPS" />
  <policy domain="coder" rights="none" pattern="XPS" />

I never had to deal with ImageMagick policies/rights before, so use this at your own risk...


Links:
https://stackoverflow.com/questions/429 ... dimage-453