bmeux

Is there a way to compress or reduce the size of digital photos after they have been taken so they can be posted to the website. I have taken several photos that are about 500 kb in size. I understand it is appropriate to keep the size under 100 kb for logging purposes. I have figures out how to change the compression size on the camera before the picture is taken, but is there a way to do it on the computer after the photo is taken? I use a pc laptop. Thanks