(Chilkat2-Python) Extract Embedded Files from PDF

Demonstrates how to get information about the embedded files (if any) contained within a PDF, and shows how to extract each file.

Note: This example requires Chilkat v9.5.0.95 or greater.

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

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

pdf = chilkat2.Pdf()

success = pdf.LoadFile("qa_data/pdf/embedded_files/my_embedded_files_test.pdf")
if (success == False):
    print(pdf.LastErrorText)
    sys.exit()

# Note: The embedded file functionality was added in Chilkat v9.5.0.95

# How many embedded files exist within the opened PDF?
numFiles = pdf.NumEmbeddedFiles
print("Number of embedded files: " + str(numFiles))

json = chilkat2.JsonObject()
json.EmitCompact = False

bd = chilkat2.BinData()

# Get information about each file, and extract each to the filesystem.
i = 0
while i < numFiles :

    success = pdf.GetEmbeddedFileInfo(i,json)
    if (success == False):
        print(pdf.LastErrorText)
        sys.exit()

    print(json.Emit())

    # Get the filename from the JSON.
    filename = "someFile.dat"

    # The filename SHOULD always be present..
    if (json.HasMember("filename") == True):
        filename = json.StringOf("filename")

    # Get the file data.
    success = pdf.GetEmbeddedFileBd(i,bd)
    if (success == False):
        print(pdf.LastErrorText)
        sys.exit()

    # Save the contents of the bd to the filename (in the current working directory) in the filesystem.
    success = bd.WriteFile(filename)
    if (success == False):
        print("Failed to write output file.")

    i = i + 1

# Sample output for the above code:

# Number of embedded files: 3
# {
#   "filename": "employees.json",
#   "desc": "JSON",
#   "subType": "application/json",
#   "size": 159,
#   "creationDate": "D:20230715170506-05'00'",
#   "modDate": "D:20160207153838-05'00'"
# }
# 
# {
#   "filename": "rsaPubKey.pem",
#   "desc": "RSA Public Key PEM",
#   "size": 451,
#   "creationDate": "D:20230715170546-05'00'",
#   "modDate": "D:20150724133153-05'00'"
# }
# 
# {
#   "filename": "starfish.jpg",
#   "desc": "Starfish JPG",
#   "subType": "image/jpeg",
#   "size": 6229,
#   "creationDate": "D:20230715170356-05'00'",
#   "modDate": "D:20080529103055-05'00'"
# }