An example of how to make pictures with a resolution of 2560x1600 the two images with a resolution of 1600x1280 and 800x1280:
I do not recommend wallpaper your desired resolution, if the resolution is less than the original - the quality of the resulting images can be very bad, but not always.
1. Download the programFastStone Image Viewer
and install it. Open it. At the top left of the program window or through the Toolbar - select the file folder with the desired image. Immediately after that, in the right part of the window we can see all the images in the selected directory. Select the desired picture to trim and click on it twice with the mouse or press 'Enter'. The selected picture is set to full screen.
2. Press key combination 'Ctrl + R' (Toolbar - Edit - Change size). In the window that appears, do not expose the necessary changing the height resolution in pixels - 1280 and press 'OK'.
3. Once the program has processed the image under the specified resolution press 'X' button (toolbar - Edit - Cut) and in the window that appears in the lower left corner we enter the resolution of our future image, width 1600 and 1280 height (width 800 or 1280 by height). After that, the picture appears a selection rectangle dotted and equal to the specified contact resolution 1600x1280 (800x1280). Clicking anywhere in this area left mouse button and hold it, we can move the selection in the whole picture, choosing for themselves the best part of it for cutting.
4. After selecting the desired part to cut under the wallpaper press on the bottom right corner of the 'Trim to file' in the window that appears, select the file name, folder and file format, and click 'Save' button.
5. Open the folder mentioned above and see what we've got.
6. How do skrinlist (index sheet or contact sheet)? Open the program FastStone Image Viewer, select the folder with the pictures. Choose with the mouse the required number of images (press 'Ctrl + A' - to select all). Then press the keyboard shortcut 'Alt + C' (Toolbar - New - Create an index list), change settings "under him" in the pop-up window, using tabs' preview 'look at the result, if all satisfied, then press the button' Create '.
7. Open the folder mentioned above and see what we've got.