PDF Owner password

The owner password is used to change any existing security settings in the final document. Without this password the PDF security cannot be established. The maximum length of this password is 32 characters.

Important notice:

The PDF files created by the UNREGISTERED copy of SPLOT are for demonstration purposes only, so they can be only viewed. They cannot be modified, printed etc. So the UNREGISTERED copy of SPLOT uses internal owner password to always protect the created PDF file against printing, modifying and extracting, and so the entered owner password is ignored.

Thus the only security option which you can change with the UNREGISTERED copy of SPLOT is the User Password to change the viewing permission.