You're asked for a presentation by Thursday. The topic is clear in your head, but faced with a blank slide half an hour goes by before you write the first title. The problem isn't a shortage of ideas: it's that a presentation isn't a document, and the step from "I know what I want to say" to "I know how to split it across twelve screens" is a job in itself — one that weighs more than the writing.
Why the blank page costs more time than the content
Writing a document, you can start at the beginning and carry on. A presentation doesn't work that way: it requires deciding up front how many parts it will have, how much weight each gets and in what order they go. That's an architectural choice, and it has to be made before anything is written — in other words, at the moment of maximum uncertainty.
Hence the two most common failures: presentations that are documents in disguise, with slides dense in text nobody reads while the speaker summarises them; and presentations that unravel, where every slide is clear but the whole leads nowhere. Generating an automatic draft doesn't solve the content, but it removes precisely the cost of the initial outline: you go straight to critiquing an existing structure, which is far easier than inventing one.
How many slides you actually need
| Number | Typical format | Indicative duration |
|---|---|---|
| 5 | Quick update, opening pitch, a point raised in a meeting | 5-8 minutes |
| 10 | Standard presentation: context, proposal, conclusions | 15-20 minutes |
| 15 | In-depth treatment with data and use cases | 25-30 minutes |
| 20 | Lecture, training session, extended presentation | 40-45 minutes |
The most-used rule of thumb is roughly two minutes per slide, including pauses and short questions. The most effective way to choose isn't "how much content do I have" but "how much time was I given": starting from the available minutes and deriving the slide count avoids the thirty-screen deck for a fifteen-minute slot — the most frequent mistake, and the one that most irritates an audience.
Style isn't only aesthetics
Five recurring settings cover most contexts, and each implies a different way of organising the content:
- Business: sober tone, oriented towards decisions, numbers and next steps.
- Education: didactic progression, definitions before examples, a slower rhythm.
- Minimal: very little text per slide, suited to someone who talks a lot and uses slides as visual support.
- Modern: a balanced setup, a good compromise when the context isn't defined.
- Pitch deck: a sequence oriented towards persuasion — problem, solution, market, ask.
The choice mainly changes how much text ends up on each slide and which narrative sequence is proposed. A pitch deck and a lecture on the same subject don't differ in their colours: they differ in the order in which they present information.
How to generate a presentation
- Open the free presentation generator and describe the topic in one specific sentence: "onboarding new hires at a company" works better than "human resources".
- Choose the slide count starting from the minutes you have, and the style suited to the context.
- If you already have material — a report, a technical document, some notes — upload it as a context file: the deck will be built on your content rather than on generic knowledge.
- Review the sequence before the text: the first thing to judge is whether the slide order holds up, not whether the sentences read well.
- Read the speaker notes, which contain what you should say while the slide is on screen — the part that's usually missing entirely.
What always needs manual review
- Numerical data. If you didn't upload a context document, every figure must be replaced with your real numbers: no tool knows your company's results.
- The opening and closing slides. They're the two that stick in the mind, and the two an automatic generation makes most generic.
- Text density. If a slide has more than five lines, split it or lighten it: an audience reads or listens, not both.
- Internal vocabulary. Product names, acronyms and your organisation's conventions have to be added by hand.
Frequently asked questions
How many slides can I generate?
You can choose between 5, 10, 15 or 20 slides. The most reliable criterion is to start from the time available, counting roughly two minutes per slide including questions.
Can I start from my own document rather than a topic?
Yes: by uploading a PDF or text file as context, the deck is built on that document's content. It's the best way to turn an existing report into slides, rather than generating generic content about the subject.
Are speaker notes included?
Yes, every slide comes with speaker notes: the text to say aloud while the slide is projected. It's the part that usually takes longest to write and that almost nobody prepares.
What's the difference between the available styles?
They change the register and the narrative structure: business aims at decisions and numbers, education at a didactic progression, minimal reduces text to a bare minimum, pitch deck follows the problem-solution-market sequence. It isn't a choice of colours, it's a choice of how the argument is organised.
In summary
The biggest cost of a presentation isn't writing the slides: it's deciding the structure from nothing. An automatically generated draft removes that cost and moves the work to where it actually matters — checking the sequence, substituting real data, making the opening and closing specific. The presentation generator produces 5 to 20 slides in five styles, with speaker notes and the option to start from your own document; if your source material is disorganised, run it through the text formatter first, and the other tools are on the PDF and AI tools page.