How to Change Password of PDF using Python. For more details: https://kb.aspose.com/pdf/python/how-to-change-password-of-pdf-using-python/

How to Change Password of PDF using Python.py

import aspose.pdf as pdf

# Load the license
license = pdf.License()
license.set_license("Aspose.Total.lic")

# Create PdfFileInfo  object
pdfFileInfo = pdf.facades.PdfFileInfo("PasswordPDF.pdf")

# Create PdfFileSecurity object
if pdfFileInfo.is_encrypted == True:
    # Create PdfFileSecurity object
    fileSecurity = pdf.facades.PdfFileSecurity()

    # Bind the source PDF file with the PdfFileSecurity object
    fileSecurity.bind_pdf("PasswordPDF.pdf")

    # Change password
    fileSecurity.change_password("owner", "new_user", "new_owner", pdf.facades.DocumentPrivilege.print, pdf.facades.KeySize.X256)

    # Save PDF with new user and owner passwords
    fileSecurity.save("UpdatedPasswordPDF.pdf")
            
print("Password changed successfully")