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The PDF quiz: ten questions for people who live in documents

Points, paper sizes, standards and a bit of history. Ten questions, explanations after each answer, no sign-up, no email at the end.

Play · 2 min read · Updated 22 October 2026

Pick an answer to see whether you were right and why. Your score appears at the end.

Want the background behind the questions? Start with a short history of the PDF or A4 vs Letter.

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