Sets the sources to look for TrueType fonts when rendering documents.
Example
fromgroupdocs.viewer.fontsimportFontSettings,FolderFontSource,SearchOptionsrc1=FolderFontSource("C:/fonts/primary",SearchOption.ALL_FOLDERS)src2=FolderFontSource("C:/fonts/backup",SearchOption.TOP_FOLDER_ONLY)# Set font sources using various argument forms (flattened internally)FontSettings.set_font_sources(src1,src2)# varargsFontSettings.set_font_sources([src1,src2])# single listFontSettings.set_font_sources([src1],[src2])# multiple lists (flattened)FontSettings.set_font_sources([src1,src2],src2)# mixed — also flattened# Clear all registered font sourcesFontSettings.reset_font_sources()