determine if PDF file is openable and not corrupt

Question

I am wandering if anybody has a reliable way of determine whether a PDF document is actually a PDF document, and that it isn\'t corrupted.

I generate reports on my syste

Answer 1

You can use pdfinfo, centos installation command:

yum install poppler-utils

... and use pdfinfo command. The PHP code is as follows:

if(!exec("pdfinfo test.pdf")){
  echo "file is corrupted"
}