

Note that the most common resolution for computer screens a couple of years ago was 1024×768. This means you can reduce the resolution to 72 or 100 ppi without any noticeable difference in the image on a computer screen and it will reduce your image size significantly.

The spatial resolution most screens can show is 72 or 100 (PPI or pixels/in). You can also adjust the resolution, which will allow you to view the image in its original size online, but reduce the print quality. This is the most common way to scale an image. You can change the image size directly by adjusting the width and the height. Anyway, once the scale image dialog appears, you’ll see a couple of options: You can do that by going to Windows and clicking on Single Window Mode. Note that in Gimp 2.8, you can combine all the windows into a single window instead of everything floating around all over the place. Once you have it installed, open your image and then click on Image and Scale Image.
SEARCH FOR IMAGE ON A MAC FREE
It’s free and it has some nice tools for scaling images. If you want a little fancier program for resizing images, you can use a program called the Gimp.
