uploading digital photos

If the format is jpeg, or some other compressed format, then you cannot have your cake and eat it too.

Once you have compressed an image, the only way to make the file smaller, is to either crop the image, or reduce the pixel count (quality).

Now, there are some variations in jpeg compression.
You may be able to select a higher compression ratio using a photo editor.
CAUTION: The higher the jpeg compression, the more data will be lost should you edit or re-save the file.
Each generation of jpeg compression will loose more detail from the image.

If the image is a .bmp or .tif, you can compress the image.
You can either zip the file, or convert it to a jpeg or gif file.

Chas

Use the lowest color depth you can get away with. A 16-bit picture will be smaller than 32 bits.

Cheers

The previous answers are good, but there are now compression programs that will compress smaller than .jpg. One being used a lot in pictorial news groups is yEnc (see www.yenc.org) which creates files that are much smaller than .jpg and most browsers etc can handle it or can get free software to do so.

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