Ask one question at a time. Compound questions ("summarize the abstract and then list the methodology") tend to produce blurry, generic answers because the model has to balance two goals at once.
Anchor your question to a section: "In the Risk Factors section, what does the company say about supply chain disruption?" Citing the section in the prompt almost always gives you a citation in the answer.
If an answer feels off, follow up with "Quote the exact sentence that supports that." — pdfcraft's Chat tool is built to admit when something isn't in the document.