# Generate structured exams from PDFs with OpenAI and HTML: n8n workflow

> Started by another system calling it, and works across Telegram. It hands the judgement calls to OpenAI.

Source: https://millionrounds.com/workflow/generate-structured-exams-from-pdfs-with-openai-and-html (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Documents and files](https://millionrounds.com/workflows?category=Documents+and+files#library)

# Generate structured exams from PDFs with OpenAI and HTML

Started by another system calling it, and works across Telegram. It hands the judgement calls to OpenAI. 16 steps, 2 branches: a working afternoon to understand properly.

Medium Calls a model: OpenAI

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fgenerate-structured-exams-from-pdfs-with-openai-and-html)

**16 steps** Medium: a working afternoon

**2** Branches: places the flow splits

**0** Loops or waits

**1** Service it connects to

## The flow

Starts it 3 Model 1 Logic 7 Service 5

The steps in the order they run, from what starts it.

- 1 **Webhook** Webhook *Starts it*
- 2 **Validate Parameter & PDF** Code *Logic*
- 3 **Condition Valid** If *Logic*
- 4 **Extract from File** Extract From File *Service*
- 5 **Respond Valid Parameter** Respond To Webhook *Starts it*
- 6 **Clean Text** Code *Logic*
- 7 **Length Estimation Layer** Code *Logic*
- 8 **Validate Token > 8.000** If *Logic*
- 9 **Respond to Webhook** Respond To Webhook *Starts it*
- 10 **Message a model** Open Ai *Model*
- 11 **Parse JSON** Code *Logic*
- 12 **Format Exam Text** Code *Logic*
- 13 **Convert HTML to PDF - Exam** Htmlcsstopdf *Service*
- 14 **Convert HTML to PDF - Answer** Htmlcsstopdf *Service*
- 15 **Send a text message** Telegram *Service*
- 16 **Send a text message1** Telegram *Service*

## How it's built

- **Starts on:** Another system calling it
- **Steps:** 16, with 2 branches
- **Size:** Medium: a working afternoon
- **Connects to:** Telegram
- **Model:** OpenAI

## Questions

What does it need to run?

An n8n account, plus your own Telegram account, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling it.

Does it use AI?

Yes. It calls OpenAI. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 16 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 16 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fgenerate-structured-exams-from-pdfs-with-openai-and-html)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Telegram](https://millionrounds.com/workflows?service=Telegram#library)

## Workflows like it

Also documents and files, with the same services where possible, closest in size first.

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- [**Create a searchable document archive with Telegram and Drive** 17 steps · Airtable, Google Drive](https://millionrounds.com/workflow/create-a-searchable-document-archive-with-telegram-and-drive)
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