Exclude certain file extensions when getting files from a directory

Question

How to exclude certain file type when getting files from a directory?

I tried

var files = Directory.GetFiles(jobDir);

Answer 1

This is my version on the answers I read above

List fileInfoList = ((DirectoryInfo)new DirectoryInfo(myPath)).GetFiles(fileNameOnly + "*").Where(x => !x.Name.EndsWith(".pdf")).ToList();