For those of you without Photoshop or similar software that need to find out the resolution of an image, this one is for you. 

Remember, we suggest a minimum 2550 x 3450 pixels.  Here's a quick tutorial on how to find the pixel dimension of a particular image using any version of Mac OS X or Windows XP.  Other versions of Windows may differ slightly.

Mac Users:

For mac users, simply right click (or control click) on the image and a menu will pop up:

Select "Get Info" and the window below will pop up:

What is circled in RED is the pixel dimensions of that particular image.

For PC users:

You will want to locate your "My Pictures" folder within your computer.  Move the image that would are curious about into that folder. 

Open the "My Pictures" folder if it is not already open.

Under the "View" menu item, select "Details".  This will list the files in the detailed format.

You will now be able to see the pixel dimension next to each image: