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Wand Policy Error: error/constitute.c/ReadImage/412

I am facing the issue while converting pdf to image using Wand:

E           wand.exceptions.PolicyError: not authorized `/opt/sample.pdf' @ error/constitute.c/ReadImage/412

I have already visited the previous stack overflow question here: convert:not authorized `aaaa` @ error/constitute.c/ReadImage/453

Here is my code

def build_image(self, pdf_path, img_path):
    with wand.image.Image(filename=pdf_path) as img:
        img.save(filename=img_path)

My code was working from last 6 months. Now, why am I getting this error?

Please help.

like image 859
Prakash Kumar Avatar asked Oct 08 '18 09:10

Prakash Kumar


3 Answers

This is probably due to an security fix of the underlaying package (see https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1796563)

I fixed it for me by editing the /etc/ImageMagick-6/policy.xml and changed the rights for the pdf line to "read":

<policy domain="coder" rights="read" pattern="PDF" />
like image 104
DTV Media Avatar answered Nov 14 '22 07:11

DTV Media


Troubleshooting ImageMagick on Debian-based systems.

If encountered with a PolicyError, you may be able to fix it by changing the following line in /etc/ImageMagick-6/policy.xml from this:

<policy domain="coder" rights="none" pattern="PDF" />

to this:

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

(More details about policy.xml available here.)

Taken from the repo

like image 41
Poorna Prudhvi Avatar answered Nov 14 '22 08:11

Poorna Prudhvi


Editing the /etc/ImageMagick-6/policy.xml and changed the rights for the pdf line to "read|write":

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

and restarting the server in my case Jupiter Notebook runtime fixed my issue

like image 2
Kokul Jose Avatar answered Nov 14 '22 08:11

Kokul Jose