string UserPassword

The OCX uses the property SECURITY_USERPASSWORD

This is the "user" password for the created PDF file. It will be required to open and read the PDF file.

Don't forget to also set bit 1 in property "Permission" to make the encryption work.

If Permission=1 and UserPassword is empty the file will be encrypted with the PDF default password.

If you use the new PDFCreator interface, please see PDFCreator.UserWP.