If you want to use a large image on a web page, loading that web page may last very long. This is quite inconvenient for the viewer. In order to shorten the waiting time there is a trick: splitting up the image. Each of the parts is loaded much faster, so the viewer does see something faster.
Exactly this task is done by Tile Image.
There are three basic ways. The first one is to define the size of one image part. Then the number of tiles is calculated. The second one is to define the number of tiles. Then the size of the parts is calculated. And the last way is to use the guide lines to define the parts.
As a result you get many image windows, each one containing a part of the original. If you turned Save Automatically on, you have to enter a filename after leaving the dialog. The partial images will be saved under this name supplemented by a number. For example, if the name is "test.png", the resulting files will be named "test1.png", "test2.png", "test3.png" and so on.
If you turned Create HTML-Code on, a HTML-file will be created showing the partial images in the correct order. The name of the HTML-file for the example above would be "test.htm".