from ironpdf import *

# Open an Encrypted File, alternatively create a new PDF from Html
pdf = PdfDocument.FromFile("encrypted.pdf", "password")
 
# Edit file metadata
pdf.MetaData.Author = "Satoshi Nakamoto"
pdf.MetaData.Keywords = "SEO, Friendly"
pdf.MetaData.ModifiedDate = Now()
 
# Edit file security settings
# The following code makes a PDF read only and will disallow copy & paste and printing
pdf.SecuritySettings.RemovePasswordsAndEncryption()
pdf.SecuritySettings.MakePdfDocumentReadOnly("secret-key")
pdf.SecuritySettings.AllowUserAnnotations = False
pdf.SecuritySettings.AllowUserCopyPasteContent = False
pdf.SecuritySettings.AllowUserFormData = False
pdf.SecuritySettings.AllowUserPrinting = PdfPrintSecurity.FullPrintRights
 
# Change or set the document encryption password
pdf.Password = "my-password"
pdf.SaveAs("secured.pdf")