how do you change an HDR file to a jpeg or png with keeping the quality?? is it possible people keep telling me that my signatures suck because of quality but with only 70kb allowed it is really hard to keep a quality image. I would keep it as a HDR but it is 184kb.

are there any free programs that work??

This thread makes no seance, and is not the section to be asking for help about your signature's quality.

HDR IS NOT A FILE TYPE. HDR Is a photography technique.
JPEG and HDR Are COMPLETELY different and have VERY LITTLE to do with each other, except for you shoot JPEG Photos and expose an HDR Technique on them.

HDR= High Dynamic Range.

I believe you should post this in the Graphic design forum; they deal with a lot of questions like these and they would be able to help you out