If you want a tool that will be used simply to quickly resize your existing images, then take a look at PixResizer (free for Windows only):

This program is extremely easy to use...

Step 1 -- First be sure to make copies of any pictures you want to resize, so you will have your original masters as a backup;

Step 2 -- Download "PixResizer"...   [Go to Website]

Step 3 -- Setup / launch the program.

Instructions for using PixResizer (if you print this page it will be much easier for you)...

(These instructions are only necessary if your original image exceeds 500 pixels wide or high. If the image is smaller than that, then this is not necessary!)

   · Open the program;

   · Load the picture you want to resize;

   · Click the "Custom Size" -- make sure that "Maintain Aspect Ratio" IS checked;

   · If your picture is wider than it is high (landscape view), then set the first field to 500; however if it is higher than it is wide (portrait view), then set the second field to 500;

   · Select JPEG;

   · Do NOT check "Output Gray Scale";

   · Click "Save Picture" button;

   · You will need to give the image a new name, also, select the folder on your harddrive for saving (remember its location!).

   · That's it!