I have found the Moodle Book Module
very useful for packaging course content. It creates "books" as a set of chapters, which can have sub-chapters. Each chapter and sub-chapter is a web page, which can be created using the built in Moodle editor, or imported.
The Moodle books
display well on screen and print well (chapter by chapter, or the whole book). Moodle has an option for exporting a book as an IMS Content Package, which is similar to SCORM.
This may not help you with converting the PDF content. But once you have individual documents converted, it might be a useful way to maintain it.
For my Green ICT course
, I converted about 100 pages of material manually. Where the content was already in some sort of word processing format, I saved it as HTML and ran it through the HTML TIDY
converter. I then manually edited the result. This was then provided as a Moodle Book and an IMS Package
For PDF, the conversion process produced HTML so poorly formatted it was easier to start with clean unformatted text and add back all the formatting manually. That is a very laborious process, but produces a very well formatted result, with tiny files (about one tenth to one hundredth the size of PDF).
The Moodle Book produced such a good result that I exported it back to PDF and produced a real book
from it and sell printed copies, as well as electronic ones.
ps: If you really want to leave the content in PDF format, then you might be better off providing a short index to it using web, IMS or SCORM and saving the PDF in external separate files. Keep in mind that you can link to a particular page in a PDF
document from a web page.
pps: I don't think PDF is a good format for education, but sometimes it is all you have.