PHP ImagickException: not authorized

Your policy "MVG" could be the reason. Just comment

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

in /etc/ImageMagick/policy.xml and restart Apache server.

I have followed the below Steps to fix the Fatal error:

Uncaught ImagickException: not authorized `../../c02_001.pdf'
@ error/constitute.c/ReadImage/412 

---

1. sudo vi policy.xml from etc/Imagemagick-6/

2. comment the following line

   <!-- <policy domain="coder" rights="none" pattern="MVG" /> -->
   

3. Rewrite the following line

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

   to

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

4. sudo apt-get install inkscape

5. Restart apache with following command sudo restart apache2