PDFFly (https://pdffly.com/pdf-summarizer) generates a structured summary from an imported PDF and allows the document to be queried via a chatbot.

PDF file up to 100 MB.
The tool is part of a larger PDF suite (conversion, compression, merging, rotation, etc.).

After the automatically generated summary, the chatbot allows you to ask specific questions about the document.
The pdf remains active.

Export by copy/paste.

Free, no registration and no announced quota. The account allows saving and later viewing.

Sources for the tests:

• Cycle 3 programmes: https://eduscol.education.gouv.fr/4356/enseigner-au-cycle-3
• Artificial Intelligence and Education : Research Contributions and Challenges for Public Policy: Benchmarks for Action – 2026 Edition https://edunumrech.hypotheses.org/16230