I'm trying to save my blog to pdf but every method I've discovered thus far results in just the login page being saved because you have to be logged in to view blogs. Any ideas?
If you are on a PC, one approach is to install "CutePDF" which is free and lets you print to a PDF file as though you were printing to a printer. This requires that you print each HTML page, but if you are printing from this site you can turn up your posts per page in order to minimize the number of pages.
You could also do something similar and save the pages of HTML, and merge them together into one page before printing to PDF.
Depending on the tool you are using to do bulk downloads of HTML, you might be able to log into here, then take the cookie from your browser and feed it to your download tool.
Hope some of that is helpful.
(another approach is to cut and paste into a word processing program, then print to PDF the result. You mileage may vary, depending on browser and word processor.)