Chat With PDF by Copilot.us

Chat With PDF is a document-analysis app from Copilot.us (operated by Botmakers LLC, now hosted at bestaiapps.co) that lets you upload PDFs or pull files from Google Drive and interrogate them in a chat interface. The core loop is familiar: select content sections to get instant summaries, ask custom questions, and receive answers with citations back to the source passage in the document. It supports multi-PDF sessions, which makes it useful for comparing or cross-referencing reports rather than chatting with a single file at a time.

The pitch isn't that this is a best-in-class standalone reader — there are stronger dedicated options — but that it's one of dozens of apps under a single Copilot.us / bestaiapps.co membership. The same login gets you batch processors, AI summarizers, resume tools, translators, web search, and more. That bundling is the differentiator for professionals, students, and researchers who want a Swiss Army knife rather than a stack of separate subscriptions, and there's a 7-day free trial to evaluate before committing.

The underlying model isn't disclosed on the product page, and there's no public API — this is a hosted SaaS web app aimed at end users, not developers. If you need programmatic PDF Q&A, ingestion controls, or self-hosting, you'll want a different tool.