I was looking for a different way to promote iPhone applications online (something a little more engaging than the “Available on the iPhone App Store” banner)…

Because I had been manually taking screen shots and compositing them into an iPhone frame, I decided to write a script to automatically do that — as well as resize them if I had a specific destination size.

This way, I only needed to upload images into the source directory, and then send a different filename into a path similar to:

<img src=”ipromo.php?img=putterball.jpg&w=425&h=600″ />

(I also had the script cache the files, so it didn’t have to regenerate them every time)

Here are some examples using common banner ad sizes:

125 x 125 Square button

120 x 240 Vertical banner

300 x 250 Medium Rectangle

250 x 250 Square Pop-Up

240 x 400 Vertical Rectangle

336 x 280 Large Rectangle

180 x 150 Rectangle

425×600 Extra Large Rectangle

425×500 Extra Large Rectangle

425×425 Extra Large Rectangle

You can download the full script here…