I don't know why I didn't think of this sooner. Though to be honest, I don't know whether they will work - but I see no reason why they shouldn't. Here's the idea:
- QR codes are used, among other things, to encode URLs. Using a QR code reader, you photograph the image, and then are taken to the encoded URL.
Take the source of these applets, and enter them into the QR Code generator.
Pictured below is the Download PDF bookmarklet used to download web pages in PDF format. Again, I don't know whether it will work on your smart phone - but some should (or if not, smartphone web browsers should make them work).
Try it. See whether it works. Here's the 2+2 applet:
And here's the Download PDF QRApplet:
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