What do you need: FastStone Image Veiwer. ( Download from. site )

_{The minimum size of the photo: 1440h1280.}
Open the desired photo FSViewer'om. Move the mouse to the left side and "Crop", select the menu that appears. In the lower menu to the right of the "Paper Scale" we choose "...", where we choose "Add". In the window we write size: 10 in the first window, 8.89 in the second box, and inch size. And click "add". Now the photo size will 10h8.89 format, then we choose the move crop to the desired location. Then we click "Trim." The deed is done, now it's a photo fit perfectly under the desktop screen with razrisheniem 720h1280. But if you want to reduce the picture to 1440h1280, we again direct the mouse to the right, select "Resize", there are words in the first column of 1440 and should be in 1280 in the second machine (if it is not, then you have something wrong done).
For 1600h1280, we are doing the same thing, only in a window where propisuem format 12h9.6 and do everything as I described above.

For example we have a picture size of 2560x1600, prune a format 10h8.89 obtain 1800h1600 (now coming to rob. Table), and then simply resize to 1440h1280 (second number itself must come out). And wallpaper 1600h1280 only format 12h9.6 and when decrease in the first column, write in 1600.