is it possible to check if pdf is password protected using ghostscript?

by

checkuserpasswdPDF.sh:

#!/bin/sh

GS=~/gs/bin/gs
output=`$GS -dBATCH -sNODISPLAY "$1" 2>&1`
gsexit=$?

if [ "$gsexit" == "0" ]; then
  echo "Not user-password protected"
  exit 0;
else
  found=`echo "$output" |grep -o "This file requires a password"`
  if [ -z "$found" ]; then
    echo "Failed to invoke gs" 
    exit $gsexit
  else
    echo "Protected"
    exit 0;
  fi  
fi

Checks for user-password protected PDFs: checkuserpasswdPDF.sh test.pdf.

GS disregards owner-passwords (see this).

More Related Contents:

  1. Cropping a PDF using Ghostscript 9.01
  2. How to extract text from a PDF? [closed]
  3. Converting a PDF to PNG
  4. How can I extract embedded fonts from a PDF as valid font files?
  5. PDF text extraction from given coordinates
  6. How to print PDF on default network printer using GhostScript (gswin32c.exe) shell command
  7. How can I remove all images from a PDF?
  8. Using GhostScript to get page size
  9. How to use ghostscript to convert PDF to PDF/A or PDF/X?
  10. Converting PDF to CMYK (with identify recognizing CMYK)
  11. Script (or some other means) to convert RGB to CMYK in PDF?
  12. PDF – Remove White Margins
  13. How can I shift page images in PDF files more to the left or to the right?
  14. Is it possible in Ghostscript to add watermark to every page in PDF
  15. How to merge two postscript files together?

Leave a Comment