[AccessD] Need to Trim down Excel Chart jpg files that are shown on an Access Report

All,

I am working on an Access application that uses Excel (via automation) to create a number of Charts (half-circle gauges) that are included on an Access report as jpg files.

Excel does a nice job of generating the gauges, but they are generated with too much space around the gauge.  I would like to find a utility that I could use to automatically trim off the excess in order that more images can be tightly packed on the Access Report.  I have experimented with IrfanView a bit but have not had success.

Is anyone aware of a utility that can be used to automatically trim off specific amounts from each side of an image?

Thanks,
Brad