After I updated ‘groupdocs-conversion’ for Java from 25.6 to 25.8 conversion to PDF started to fail for the above file extensions.
For DXF I see the following exception:
com.groupdocs.conversion.exceptions.CorruptOrDam…...Unable to convert DXF, MPT, MPP file to PDF after updating from...Conversion Product Family java , document-conversion adrian.gruber.95...