When present, the write protection shall result in one of two write
protection behaviors:
If the Password property is present, or both (WritePassword and ReadOnlyRecommended
properties) are omitted, then the application shall prompt for a password to
exit write protection.
If the supplied password does not match the hash value in this property,
then write protection shall be enabled.
If only the ReadOnlyRecommended property is present, the application should provide
user interface recommending that the user open this document in write
protected state.If the user chooses to do so, the document shall be write
protected, otherwise, it shall be opened fully editable.
