Exam Generator: How to Turn a Past Paper or PDF Into a Ready Exam

An exam generator turns source material into a test you can give. Some write new questions from your notes; others extract the questions already in a past paper, worksheet or PDF. If you already have good papers, extraction is the faster, safer route: upload the document, review every drafted question, then set marks, shuffling and a time limit.

The review step is the part most guides skip, and it is where a generated exam is made or broken. This guide explains the two kinds of exam generator, the exact workflow for turning a document into a ready exam, a checklist for catching the mistakes AI tools make, and how to write distractors that actually test understanding.

Two kinds of exam generator

Tools sold as “exam generators” do one of two different jobs, and mixing them up leads to disappointment.

	Writes new questions	Extracts existing questions
Starts from	Notes, a topic, a textbook chapter	A past paper, worksheet, PDF or photo
Good for	Fresh practice when you have no question bank	Reusing questions you already trust
Main risk	Plausible but wrong questions, or trivia	Lost diagrams, misread options, missing answers
Your job afterwards	Check every fact	Check every transcription

Neither is “better”. If you have a drawer of past papers you have marked for years, extraction gives you questions you already know are fair, at the right level, in your own wording. If you are teaching a new course with no material, a writing tool gives you a first draft to edit.

What neither removes is the review. A generated exam you have not read is a risk you are taking with your students’ marks.

Step 1: Prepare a clean source

Most extraction errors start with the input, so spend two minutes here.

• Use the original file when you can. A PDF or Word document exported from the source reads far more reliably than a phone photo of a photocopy.
• If you must photograph, shoot flat and well lit, one page per photo, with no fingers or shadows over the text.
• Mark the answers. Highlight the correct option, or keep an answer key line such as “Answer: B” next to each question. A generator can only fill in the right answer if the document shows it somewhere.
• Keep one question per block. Two-column layouts and questions that run across a page break are the most common source of jumbled options.

Step 2: Extract

Upload the document and let the tool draft the questions. A good extractor should give you, for each question, the question text, the options, the question type (single answer, multiple answer, true/false, fill in the blank, essay) and the correct answer where it could find one.

Treat this as a draft, never a final exam. The tool’s job is to save typing, not to make decisions for you.

Step 3: Review every question

This is the checklist. It takes a few seconds per question once you get into a rhythm.

1. Is the stem complete? Look for words cut off at a line break or a page break.
2. Are all the options there, in the right order? Options from a two-column layout are the ones most often merged or reordered.
3. Is the marked answer actually right? If the source had no answer marked, the field may be empty or guessed. Fix it yourself.
4. Is the question type right? A question with two correct answers must be multiple answer, not single answer, or it will be marked wrong for everyone.
5. Did it depend on a diagram, graph or table? If so, the question probably no longer makes sense without the picture. Rewrite it, or leave it out.
6. Are symbols and units intact? Check formulas, superscripts, fractions and units. These are easy to mangle and hard to spot at a glance.
7. Is it still fair? A question that was fine as homework may be too long for a timed exam.

Step 4: Make the wrong answers do their job

A multiple choice question is only as good as its wrong options. If the distractors are silly, students who know nothing still get it right by elimination.

The University of British Columbia’s multiple choice question guidelines are a good short reference. A few of their points:

• “Each incorrect option should be plausible but clearly incorrect.”
• “Distractors should be of similar length.” A longer, more detailed option is often a giveaway.
• “Distractors should be grammatically consistent with stem.”
• “All of the above” should be avoided, and “none of the above” used with caution.
• “Negative stems should be used with caution.” If you must ask “which is NOT…”, make the NOT impossible to miss.

The best source of distractors is real student mistakes. If you know the common misconception for a topic, make it an option. That turns a question into a diagnostic: you learn not just who was wrong, but why.

Step 5: Set marks, shuffling and a time limit

Before the exam goes live:

• Give each question its points, and decide whether partial credit applies to multiple-answer questions.
• Shuffle question order and option order so neighbouring students do not see the same layout.
• Set a duration so the exam ends when it should.
• Decide what is marked by hand. Objective questions can be marked automatically; essay answers need you.

Doing it in Room Quiz

Room Quiz follows this extraction workflow. You upload a PDF, a Word document or a JPG or PNG photo of a paper, and its AI question extraction drafts questions from it. It looks for answers marked in the document, such as highlighted options or an “Answer:” line, and nothing is added to your exam until you have reviewed and edited the drafted questions.

It extracts the questions in your document rather than inventing new ones, which is the point: you keep your own trusted material. From there you can mix question types including single and multiple answer multiple choice, true/false, fill in the blank and essay, reuse questions from a question bank, randomize question and option order, and set a duration. Students join with a room code or QR code from a phone browser. Multiple choice, true/false and fill-in-the-blank answers are graded automatically, and essays are left for you to mark.

The short version

• Exam generators either write new questions or extract existing ones; pick the job you need.
• Clean input prevents most errors: original files, marked answers, one question per block.
• Review every drafted question with a checklist, especially anything that relied on a diagram.
• Plausible, same-length distractors make a multiple choice question worth asking.