Your best bet for PDFlib training (www.pdflib.com) is to make use of their cookbook. You can find this here.....

The cookbook covers:

Block Handling and PPS

Color

Complex Scripts

Document Interchange

Fonts and Encodings

General Programming

Geospatial PDF

Graphics

Images

Interactive Elements

Multimedia

Pagination

PDF/A

PDF/X

PDF Import

PDF on the Web Server

Tables

Text Output

I hope this helps