I am using version 25.2.1 of GroupDocs.Conversion. When I attempt To convert a ICO file To PDF, I get the following stack trace:
java.lang.RuntimeException: class com.groupdocs.conversion.exceptions.FileTypeNotSupported…...**Primary conversions**: [tiff, tif, jpg, jpeg, png, gif, bmp, ico, psd...conversions**: [epub, mobi, azw3, eps, xps, tex, pdf, xls, xlsx, xlsm...