PDF to online test

Turn any question paper PDF into a timed, exam-style test. Your own ChatGPT reads the PDF, you paste its answer here, and the test runs right in your browser. Free, and your tests stay on this device.

1. Ask ChatGPT

Copy the prompt below.
Open ChatGPT, attach your question paper PDF with the paperclip, paste the prompt and send.
ChatGPT replies in parts of about 40 questions. Type continue until it says it is complete.
Copy all its replies (or the whole chat) and paste them in step 2.

Open ChatGPT

See the prompt

You are converting the attached question paper (PDF) into an online test for the Doubtly CBT player.

Rules:
1. Read the whole PDF. Keep the original order of sections and questions. Do not skip, merge or reorder questions.
2. Never invent or reword question text, options or given answers. Copy them as written. Fix only obvious line-break or hyphenation breaks.
3. Write plain text, not HTML or Markdown. Write all maths in LaTeX inside \( and \), for example \(\frac{1}{2} m v^2\).
4. Types: "single" (one correct option), "multiple" (one or more correct options), "numerical" (a number is the answer), "subjective" (written answer).
5. Answers:
   - If the paper or its answer key gives the answer, use it and set "answer_source": "paper".
   - If it does not, solve the question yourself carefully and set "answer_source": "solved".
   - single/multiple: a list of option keys, e.g. ["B"] or ["A","C"]. numerical: {"value": 12, "tolerance": 0}. subjective: null, with a short model answer in "solution".
6. If a question or option uses a figure, diagram, graph or table, describe it fully in words in "figure" (what is shown, labels and values) so the question can be answered without the image.
7. Use the marks and negative marks printed on the paper. If none are printed, use "marks": 1 and "negative_marks": 0.
8. Put a short worked solution in "solution" when you can (plain text, LaTeX for maths).
9. At most 300 questions in total.

Output format:
- Reply with ONLY one ```json code block per message. No other text before or after it.
- Write the test in parts of about 40 questions. After each part, stop and wait. When I say "continue", write the next part.
- Every part is a complete JSON object with "doubtly_cbt": 1 and the same title. If a part continues a section, repeat that section's exact title.
- In the last part, add "complete": true.

JSON shape:
```json
{
  "doubtly_cbt": 1,
  "title": "Exam name, subject, paper and year as printed",
  "subject": "Science Part 1",
  "exam": "Maharashtra SSC",
  "year": 2025,
  "duration_minutes": 120,
  "source": {"name": "Who set or published the paper, as printed", "note": "Anything useful about the paper"},
  "sections": [
    {
      "title": "Q1 (A) Choose the correct alternative",
      "questions": [
        {
          "type": "single",
          "text": "Question text as printed",
          "options": [{"key": "A", "text": "..."}, {"key": "B", "text": "..."}, {"key": "C", "text": "..."}, {"key": "D", "text": "..."}],
          "answer": ["B"],
          "answer_source": "paper",
          "marks": 1,
          "negative_marks": 0,
          "solution": "Short worked solution",
          "figure": null
        }
      ]
    }
  ]
}
```

Start now with part 1.

Have the Doubtly Chrome extension? It fills the prompt and sends ChatGPT's answer back here in one click.

2. Paste ChatGPT's answer

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Scored with the answers ChatGPT wrote. Check any answer you doubt.

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