I don't have any special program to resize digis. I use my word program.
Save an extra copy of the image to your desktop.
Open your word program
Drag and drop the image into your word program page
Click on it and you will get little boxes ( handles) on each corner
Put your cursor on one of the little boxes until it turns into a diagonal arrow.
Drag the arrow out or in to make the image larger or smaller
Hope this Helps
"I have not failed . I've just found 10,000 ways that won't work" --Thomas A. Edison