It's difficult. If you're under NDA then there's very little you can say. Sadly this is what we have to work with in a digital strong-IP work-for-hire world: you don't own your work, you can't archive it, your employer probably won't archive it properly, and in a decade or so it may not exist. All you get to keep is the salary and the memories.
Pragmatically the easiest thing might be to take your own copies of company publicity materials about the product. That way you avoid NDA problems. Technically a screen shot of the product information page from 3 years ago is infringing but not in a way that anyone is likely to care about.
Pragmatically the easiest thing might be to take your own copies of company publicity materials about the product. That way you avoid NDA problems. Technically a screen shot of the product information page from 3 years ago is infringing but not in a way that anyone is likely to care about.