TL;DR a research paper, a long report, or a competitive whitepaper.
The tools that come up when the actual job is interpreting data rather than collecting it: CSV viewer with column typing for the export you just got from the database, JSON formatter for the API response, regex tester against the source string, base64 for the binary blob someone embedded in a JSON field, hash for source verification, and the AI summarizer for digesting long-form sources.
Use it to decide what is worth reading, not as the reading. Cite the paper, not the summary, and re-check any figure you plan to quote - the summary is a lossy compression of someone else’s claim.
To an AI provider for processing, unlike the browser-only tools here. Do not paste material under embargo, client-confidential content, or personal data you are not cleared to share.
You need the text: extract or copy it out of the PDF first. One submission takes up to about 8,000 characters, so a long report has to be split into sections and summarised in parts.