Not quite sure if I understand what you want.
You want to make it so people can download - and save - the full contents of your web page in one go, images and all?
If so, then that's not really possible without zipping the directory.
You can, however, use tools to downlaod all the images in a webpage. Normally if you click "File -> Save Page As" in your web browser, you can save the whole page. Also, take a look at wget.
Cheers
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