When I will save a document, I ticking the save with password screen from "Save
As" dialog box.
And I enter passwords in the half-size caracters on the "Enter password" dialog.
Example of passwords "aaaaa".

When I will open the file again, I enter passwords in the double-size on the
password entry screen.
Example of passwords "ï½ï½ï½ï½ï½".

Then, the file is opened.(It is permitted the passwords in the double-size
character.)
Moreover, I overwrite save and close after I edited the document.
(The save is not from Save as dialog.)
And I try to open it again.(The passwords that I input "aaaaa".) But, the access
is denied.

There are two modifications.
One is that the document can be opened in the passwords of the defferent 2 size
characters.
And the other one is that the passwords are changing by itself.