title: Error converting html to pdf with dompdf: Fatal error: Uncaught ImagickException: NoDecodeDelegateForThisImageFormat
body: <p>I have a script that convert an html code with jpg and png images in PDF. Until this morning all worked right. After, without doing anything to the script or to the server it stop working and return this error:</p>
  
  <pre><code>Fatal error: Uncaught ImagickException: NoDecodeDelegateForThisImageFormat `/tmp/ca_dompdf_img_AFNf9n' @ error/constitute.c/ReadImage/544 in /var/www/vhosts/mysite.it/httpdocs/ldv/dompdf/lib/Cpdf.php:4862 Stack trace: #0 /var/www/vhosts/mysite.it/httpdocs/ldv/dompdf/lib/Cpdf.php(4862): Imagick-&gt;__construct('/tmp/ca_dompdf_...') #1 /var/www/vhosts/mysite.it/httpdocs/ldv/dompdf/lib/Cpdf.php(4984): Cpdf-&gt;addImagePngAlpha('/tmp/ca_dompdf_...', 499.0142519685, 739.6242519685, 75, 75, 3) #2 /var/www/vhosts/mysite.it/httpdocs/ldv/dompdf/src/Adapter/CPDF.php(845): Cpdf-&gt;addPngFromFile('/tmp/ca_dompdf_...', 499.0142519685, 739.6242519685, 75, 75) #3 /var/www/vhosts/mysite.it/httpdocs/ldv/dompdf/src/Renderer/Image.php(110): Dompdf\Adapter\CPDF-&gt;image('/tmp/ca_dompdf_...', 499.0142519685, 27.265748031496, 75, 75, 'normal') #4 /var/www/vhosts/mysite.it/httpdocs/ldv/dompdf/src/Renderer.php(293): Dompdf\Renderer\Image-&gt;render(Object(Dompdf\FrameDecorator\Image)) #5 /var/www/vhosts/mysite.it/httpdocs/ldv/dompdf/src/ in /var/www/vhosts/mysite.it/httpdocs/ldv/dompdf/lib/Cpdf.php on line 4862
  </code></pre>
  
  <p>What may have happened?</p>