Browse through page after page and folder after folder of thumbnails of all your images, or browse through the images themselves, just using the four arrow keys, if you wish.
You can either return to the thumbnails where you left off or browse through the images.
Holding down the left or right arrow key will rapidly browse through the images in either direction (or through the thumbnail pages).
You can manipulate an image's brightness, contrast, gamma, saturation and rotation, and zoom in/out to crop the image. If you save a high-resolution screenshot with Ctrl-[S], your image manipulations will be included. You can adjust the size of the saved file by adjusting the size of the window displaying the image: the smaller the window the smaller the file size and vice versa.
You can browse up and down the entire folder structure of a hard drive using the up and down arrow keys! And browse every single image in each folder using the left and right arrow keys.
You can organize your images into user-defined folders. Each of the 12 function keys, F1-F12, can be assigned to a different folder: either as subfolders of a user-defined base folder; or as individually-specified full folder paths; or a combination of both.
Shift-Up arrow and Shift-Dn arrow will increase or decrease the size of the thumbnails. You can also alter the size of the thumbnail window to fit more or fewer thumbnails per page. The arrow keys can be held down for rapid increase/decrease of thumbnail size. The thumbnails will be redrawn at the new size on every keystroke.
A help panel gives easy access to all the available keyboard and mouse controls, all of which can be used while the help panel is showing.