When open browser then open website which you want to read then if it is according to your requirement add it to favorite tab, now you can find any time from favorite tab. When ever i was browsing save web pages relate to my grand pa interest. Then he read them while offline.
I use Instapaper.
Can't praise it high enough since I use it daily.
Best of all you can transfer your pages to Evernote within the app.
I had to ask because I just copied and pasted the code from the bookmarklets link and it works fine on my iPad (no 404 errors)...
And, it doesn't have to be opened in iBooks. It can be opened in any app that can read PDFs. See this for what I mean:
PDFmyURL.com - Free & Online: Convert and save PDF from any web page and it worked, I compared their code and yours on Guide: Creating Safari Bookmarklets.