The majority of this paper has discussed conversions to Braille. It could be assumed that the conversion of text to large print would be a simple process that avoided the extensive editing of a Braille conversion. If the textbook to be converted is simple literary text, the process is simple; scan, convert with OCR software and check for accuracy. If the textbook has graphs, pictures, inserts, special fonts, etc.. then the process that has been discussed will not be satisfactory.
The objective in a multiformat textbook is to preserve the structure of each page while converting the text into ASCII. The conversion is possible with products such as Windows based TextBridge Professional by Xerox (508) 977-2000 will scan text and preserve the original format. This product will allow you to create a computer based file.
Please be aware that anytime graphical information is saved, it will take considerable more disk space than simple text. If you use a produce like TextBridge be sure you have the capability to store large files.