CkPython Requires Chilkat v11.0.0+

PDF Get Encryption and Permissions Information

See more PDF Signatures Examples

Determine if a PDF is encrypted, and the associated user permissions.

Note: Some PDFs are encrypted but not password-protected. In such cases, encryption is used primarily for preventing unauthorized modifications to the document, but it doesn't restrict access. Therefore, you can open and read the document without a password.

CkPython

import sys
import chilkat

success = False

#  This example requires the Chilkat API to have been previously unlocked.
#  See Global Unlock Sample for sample code.

pdf = chilkat.CkPdf()

#  Load a PDF.
success = pdf.LoadFile("c:/someDir/sample.pdf")
if (success == False):
    print(pdf.lastErrorText())
    sys.exit()

#  Get information about the PDF that was collected in the call to LoadFile.
ljd = chilkat.CkJsonObject()
pdf.GetLastJsonData(ljd)

ljd.put_EmitCompact(False)

print(ljd.emit())

#  Sample output:

#  {
#    "pdfVersion": "1.6",
#    "encrypt": {
#      "filter": "/Standard",
#      "keyLength": 128,
#      "V": 4,
#      "R": 4,
#      "P": -1340,
#      "perm": {
#        "printLowResolution": "allowed",
#        "printHighResolution": "allowed",
#        "modifyOther": "not allowed",
#        "modifyAnnotations": "allowed",
#        "modifyForms": "not allowed",
#        "fillInForms": "allowed",
#        "assembleDoc": "allowed",
#        "extractAnyPurpose": "not allowed",
#        "extractAccessibility": "not allowed"
#      },
#      "method": "AESV2"
#    }
#  }

#  Use this online tool to generate parsing code from sample JSON: 
#  Generate Parsing Code from JSON

pdfVersion = ljd.stringOf("pdfVersion")
Filter = ljd.stringOf("encrypt.filter")
KeyLength = ljd.IntOf("encrypt.keyLength")
V = ljd.IntOf("encrypt.V")
R = ljd.IntOf("encrypt.R")
P = ljd.IntOf("encrypt.P")
PrintLowResolution = ljd.stringOf("encrypt.perm.printLowResolution")
PrintHighResolution = ljd.stringOf("encrypt.perm.printHighResolution")
ModifyOther = ljd.stringOf("encrypt.perm.modifyOther")
ModifyAnnotations = ljd.stringOf("encrypt.perm.modifyAnnotations")
ModifyForms = ljd.stringOf("encrypt.perm.modifyForms")
FillInForms = ljd.stringOf("encrypt.perm.fillInForms")
AssembleDoc = ljd.stringOf("encrypt.perm.assembleDoc")
ExtractAnyPurpose = ljd.stringOf("encrypt.perm.extractAnyPurpose")
ExtractAccessibility = ljd.stringOf("encrypt.perm.extractAccessibility")
Method = ljd.stringOf("encrypt.method")