How to remove all Meta keyword tags? -Jpeg Metadata Adapter

I
am using jpeg metadata utility in c#. I want to remove the old keyword tags and
add new tags. When I used metaAdapter.Metadata.Keywords.Add(“”) it overwrites
with existing keywords. But I want to clear the existing keywords. Finally I
used clear function () before adding keyword.

Example:

_{JpegMetadataAdapter
metaAdapter = new JpegMetadataAdapter(filePath);}

_{metaAdapter.Metadata.Title
= "Bus picture";}

_{metaAdapter.Metadata.Subject
= "New modern bus";}

_{metaAdapter.Metadata.Keywords.Clear();}

_{metaAdapter.Metadata.Keywords.Add("transport");}

_{bool
saved = metaAdapter.Save();}

More
details at https://github.com/mwijnands/JpegMetadata.

Note:
This nuget package is available in NuGet.