You cannot compress them. JPEG files are already compressed.
You can make them smaller, as given below, by removing pixels, or by using a
higher compression level in your digital camera. However, there is a danger
to this if you want to print. The print quality will decrease, particularly
if you want large prints like 8 x 10.
The best solution is to keep your original file made at the highest quality
with your digital camera and make a smaller one, as you need, to e-mail or
post on the web.
Image Resizing
To decrease the size of the file for e-mail, web publishing, etc.
Go to this site and download the free Image Resizer. Exe file in one of your
folder.
http://www.microsoft.com/windowsxp/pro/downloads/powertoys.asp
Once in your folder, double click on it to install it.
Once installed, you right click on a photo file (or on a group of selected
photo files).
Click on Resize image on the opening menu.
A window will open, select the size you want.
New files will be added in your folder, same name as original file but with
the word (small) or (custom) added.
The first time you use it, you may not see Resize image on the opening menu
after you right click on a photo file or if you see it and click on it, it
may not work. If so, do the following:
Click on Run, click on Start and type the following in the textbox:
REGSVR32 SHIMGVW.DLL
and press the Enter key.
Note that there is a space between ...32 and SHI.
You should get a "success" message after pressing the Enter key.
Also, you can download a free photo editing software from here to resize
pictures and edit photos:
http://irfanview.com/
or another free software:
www.faststone.org
From this last one, you can directly e-mail a picture and it will
automatically resize it.
Another free one to do the same is:
www.picasa.com
Picasa has a nice feature to exchange pictures with friends under "Hello"
