Hi,
I'm learning languages and I would like to create my own PDF flashcard deck where I would store the answers in an Optional Content Groups (OCG). I would hand write in the PDF, click in a link / button to show the correct answers and verify my answers. Attach is a example. The Optional Content Groups (OCG) works on Evince
https://wiki.gnome.org/Apps/Evince and Firefox's built-in PDF viewer.
I have a 2016 Kobo Aura One and it does NOT support Optional Content Groups (OCG).
Does anyone know the Optional Content Groups (OCG) support in 2023 / 2024 devices? Or could you verify using the provided example?
- Kindle Scribe
- Kobo Sage
- Kobo Elipsa 2E
- Onyx Boox Note