How do I get my files down to 100kb?

I am wondering how I format my files down to under 100kb so I can attatch them and post them in this forum. I heard you can do this with Photoshop but I don't have it. Is there any other way to do it?

Use
1. smaller filesize (less pixels X*Y)
2. more JPEG compression
3. images that compress better with JPEG:
-image is sharpened less
-image has less random noise
4. Images that do not have EXIF attached (full exif/XMP could add 40KB to file data and compression can not touch that)

cali what image editing programs do you have?

let us know what you have to work with and we can better assist you

Assuming your using XP, here's what I've been using for some time now. It also gives you some other neat little tools, even a RAW thumbnailer and viewer

http://www.microsoft.c​om …owertoys/xppowe​rtoys.mspx

When you right-click an image there will be a new resize your image option available.

Hope this helps you out.