PasswordGenerator

From fmepedia

The attached workspace PasswordGenerator.fmw generates a password consisting of 12 alphanumeric characters and saves it to a PNG file. I tried to make it a bit mysterious. In this file, the charachters are white, and the background it transparent, so if your browser background is also white, you can't see it here. If you use Internet Explorer, simply press Ctrl-A to see it:

If you don't use IE, try to open this PNG file in our Universal Viewer, although it won't look as impressive there.

The trick is simple - I take one of the bands and add it again as an alpha band. The background's cell value is 0, so once the color band becomes an alpha band, it makes the raster background transparent. The text still has maximum cell values in all bands, which make the white color.

For more details about randomness generators and examples check Using_Random.org_service.