Given the broad nature of your query, I'll provide a general overview of what could be expected if someone were to create a resource or product combining drumming, a toolbox (often metaphorically related to skills or resources), and a PDF (Portable Document Format, commonly used for e-books, guides, etc.).
This is where most drummers plateau. Your toolbox PDF should have a dedicated "Fill Vault" broken down by length (1 beat, 2 beats, 4 beats) and note value (8th notes, triplets, 16th notes). drummers+toolbox+pdf