Projector in the classroom, archive in the staff room
Open the lesson PDF fullscreen with one key; teach with laser, pen and highlighter; watch the time. Free, with a native Linux package.
Four jobs, one app
Presentation mode
F5 for fullscreen; arrows or a click to advance; B to black out; type a page number and Enter to jump.

Worksheets
Merge PDFs, pick pages, compress and share.

Student records
Remove ID numbers before sharing; fill and sign forms.

Ask the coursebook
Ask the AI where a topic is in a long guide; answers cite pages.

The free edition includes presentation, viewing and page tools.
Native Linux package; no internet; suits school networks.
Student data never reaches a server.
A school licence adds OCR and redaction for the staff room.
Which plan? Free for teachers; school licences on request.
Try it; the document never leaves
The free edition includes viewing, page tools, compare and presentation. Pro is $3 a month or $29 a year per seat.