When you load a DWG or DXF or even sometimes another user's EXB file into CAXA Draft you may get a warning that one or more fonts are missing. This is common for AutoCAD files that use .shx font files. AutoCAD and others do use some fonts that are not included in the CAXA Draft install. You can let CAXA Draft map the file's fonts to a font that you do have or you can get the font files and place them in the C:\Program Files\IronCAD\20xx\bin\CAXADraft\Font folder so that they will be used when the file opens.