Print to pdf, app or bookmarklet
it's not until/unless you choose to use Safari's "Open In..." function. The bookmarklet, when pressed/activated in Safari, will open a new Safari tab. That new tab will be the PDF (if you look at the tail end of the URL address, it'll be .pdf). it's all still on the web until you open it in another app. In other words, once you make the PDF, if you don't open it in another app (to read, e-mail, whatever), it will be gone once you close Safari (well, it]f you clear cookies, too).
Originally Posted by fuzzychicken
The iPad is app-centric, not file-centric. So, what is done in one app has to be saved to another (via the "Open In..." function). it's not a thing as with computers in that you can elect to save the PDF in a central file system.
Hope I didn't muddy up the waters too much and that it's a bit more clarified. :)