Dear listers, My office is responsible for distributing electronic Braille student-book via Internet. I'm facing with a crucial problem regarding security and copyright. Commonly, I can't upload original *.dxb files on my official website. We prefer to convert all files into *.brf and ignore graphics braille unavoidably. Now we still confront a problem that some NGOs in my country who are currently coping with education for visually impaired students. We discover that they copy our files and remove my publishing text in order to claim for their profit. Once I was advised to run the header text separately for the odd and even pages. For example, header text on the left hand side may say �the title of the book�, while the right hand say �published by my office name�. This solution is not possible in Duxbury. Please give us some advices the way we can deal with this problem. With my best regards Eakachai