.ODTTF File Extension
File TypeObfuscated OpenType Font
What is an ODTTF file?
Font file format used in the XML Paper Specification .XPS file and Microsoft Office 2007 formats; stores an obfuscated OpenType font that is based on the fonts used in the original document.
The ODTFF format is an embedded font format, which means that is included inside an electronic document, such as a .PDF or .DOCX file. It is mainly used as a resource in XPS files. However, the format uses subsetted font, which means only the characters that are used in the document layout are included in the font file.