Most photographs are taken at a 2-to-3 ratio. But there are times when you might want to make a square 2-by-2 photo for some purpose like creating company ID cards or for file photos. To do this you will have to first convert the photos to the right format before you can print them. A good program to use for this purpose is Adobe Photoshop, although if you don't have access to Photoshop you can use the freeware graphics program Gnu Image Manipulation Program or GIMP, which does the same thing.
Load your photo on your computer hard drive. If the photo is on your digital camera, connect the camera to the computer and copy the file to the hard drive.
Open Photoshop. Select "File" and click "Open." In the window that opens browse to the image you loaded and open it.
Select "Image" and click "Image Size." Change the "Interpolation" method at the bottom from "Bicubic" to "Bicubic Smoother." Change the sizing increments from "Pixels" to "Inches." Keeping the proportions the same, reduce either the width or height of the image (whichever is smaller) to 2 inches wide by 2 inches high. Click "OK."
Select the "Crop" tool from the toolbar. Change the tool options at the top to "Fixed" and enter 2 inches wide by 2 inches high. Now click on the canvas with the tool and select the area you want to keep. You can move the selection to get it right. Hit "Enter" on your keyboard to crop the image.
Copy and paste this image into a larger document with other photos you want to print to save printer paper (this step is optional).
Place photo paper in your printer. Select "File" and click "Print." In the printer preferences set the quality to "Best" and the type to "Photo." Click "OK." The photo will print out.
Use scissors or a cutting board to cut out and trim your photo.