Resizing with Paint Shop Pro
Resizing an image is one of the very basic things you will need to know in order to take a photo from your digital camera, and use it on the web. Some digital cameras will have settings that will allow you to take photos that are suitable for web use, but many will not. Know your camera! Any image that you use on the web should generally should be no wider than 600 pixels at the absolute most, and some cameras will produce photos that exceed 2000 pixels in width.
Basic Resizing
After you've opened the image that you would like to resize, click on Image at the top of your screen, and select Image Resize... in the flyout that appears.
A small window will pop-up, and at the bottom where it says Pixel Dimensions, is where you are going to tell the program what size you would like to resize it to. In my example, I changed the width to 450, and the height auto adjusted to prevent distortion of the proportions. Then click the OK button, and you've successfully resized your image.