How do I lower the size of a pic file below 40KB?

I'm trying to upload a userpic and I keep getting the error that the file size is above 40 KB. It's the right size (100x100 pixels), but the file is too big. How do I change that?
How do I lower the size of a pic file below 40KB?
Greetings Shen; Check to see what type extension the file is saved as. Normally, .jpg are the smallest where .bmp are generally the largest. If you have a picture editor program, like Paint Shop Pro, Adobe Photoshop, or even Microsoft Paint (which is already on your Windows PC under Accessories) you can convert it to a .jpg. If that doesn't work, try lowering the resolution. Hope this info helps. Cheers.
How do I lower the size of a pic file below 40KB?
You need to save it as a .JPG files and adjust the compression/quality on it down to 50 or below. That will really get it small.
make sure the file is in .jpg format. They are usually much smaller and take up less memory.
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Try Adobe Photoshop

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