Advanced eBook Inscriber is a program to convert Sealed eBooks in Microsoft Reader (.LIT) format to Inscribed ones. Sealed eBooks can be created with Microsoft Reader Content SDK (available for free) or various 3rd party tools; AEBIN allows to add any purchaser-specific information (such as purchaser's name or order number) to the Sealed eBook, so that information will be shown on the cover page of the book when it is opened in Microsoft Reader. This reinforces honest usage by consumers.