Wordpress error uploading PDF: ImagickException: Unable to read image blob

[senthil]

Symptoms

• WordPress instance is having issues uploading PDF files:
  AH01071: Got error 'PHP message: ImagickException: Unable to read image blob; PHP
  message: Upload failed: String binary is zero after processing image'
• Plesk is using Debian/Ubuntu

Cause
The ghostscript package is missing.

Resolution

• Connect to the Plesk server via SSH.
• Execute command:
  
  Code Select Expand
  #apt-get install ghostscript