goPDF (https://gopdf.pro) offers dialogue with uploaded or online PDF files and document generation in a word processing interface and from templates.
Suggested questions are available for pdfs.

OCR, HTML/CSS code editing, and screenshot tools also offered.

200 free tokens per month (10 for a pdf up to 35 MB, 1 for a document).

Sources for the tests: UNesco competency framework and Senate education report.