Question

First of all, I used ImageMagick in combination with the Imagick PHP5 extension for a while with no issues at all, untill I accidentally removed GhostScript. Since then I’m trying to get it back working again to no avail.

After reinstalling everything, ImageMagick is able to convert PDF to JPEG. However I can’t find gs in the DELEGATE list when I run convert -list configure. Still when I run convert sample.pdf[1] sample.jpg it works perfectly. However, when I reinstalled the php5-imagick extension through sudo apt-get install php5-imagick it throws an error when I try to convert PDF to images.

Fatal error: Uncaught exception 'ImagickException' with message 'no decode delegate for this image formatupload/guide.pdf’ @ error/constitute.c/ReadImage/533.`

It was thrown by the following code:

<?php
//header("Content-type: image/jpeg"); 
$img = new imagick("upload/guide.pdf[1]"); 
$img->setImageFormat("jpg");
echo $img; 
?>

I can’t see where the problem is, as ImageMagick itself is just working fine I suppose it’s Imagick that doesn’t interact with ImageMagick well.

Answer 1

I fixed the problem by not installing Imagick through the Ubuntu repository. When I ran sudo apt-get autoremove php5-imagick and tried to install it through pecl, it threw an error and said that Imagick was already installed (which was weird, because I uninstalled it and restarted apache).

So I uninstalled it through sudo pecl uninstall imagick and then reinstalled it using sudo pecl install imagick and then added extension=imagick.so to php.ini, and restarted apache again. Now everything works again. Hopefully this will help someone having the same problem.