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How to make a presentation with AI a step-by-step guide for 2026

To make a good presentation with AI, give the tool your own material (a document or detailed notes) rather than a bare topic, then treat the result as a first draft: check every fact and figure, rewrite each slide title as the takeaway, and keep one idea per slide. Export to an editable PowerPoint and rehearse out loud at least once before presenting.

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6
Steps in this guide
1
Idea per slide
100%
Of figures to check yourself
1+
Rehearsal out loud

Step 1: Prepare the input (topic or your own document)

An AI presentation tool can only be as specific as what you give it. A one-line topic produces a generic deck built on general knowledge. Your own document, notes or data produce a deck about your situation. Before you start, decide what the audience must know, believe or do at the end, and write it in one sentence: that sentence guides every later edit.

Rule of thumb: the more of your own material you provide, the less you will rewrite later.
InputBest forMain riskWhat to add
A short topicBrainstorming, a first structure, school talks on general subjectsGeneric content, figures that need checkingAudience, goal, length and 3 to 5 points you want covered
Pasted notes or textMeetings, updates, talks you already outlinedGaps in your notes stay gapsYour key numbers and the conclusion you want
Your own document (report, thesis, plan)Client proposals, thesis defenses, business reviewsToo much content squeezed into slidesWhich sections matter most for this audience

Also state the length. A 10-minute talk rarely needs more than 10 to 12 slides; a pitch deck usually sits between 10 and 15. Asking for fewer slides forces the tool to prioritise.

Step 2: Check every fact, figure and name

AI drafts read fluently, which makes errors easy to miss. Go through the deck once with a single question per slide: "Could I defend this sentence if someone asked for the source?" Anything you cannot defend goes or gets a source.

  • Numbers: compare each one with your document or an official source. Remove any figure you cannot trace.
  • Names, dates, quotes: verify spelling and attribution. A misattributed quote damages trust more than no quote.
  • Claims about competitors or the market: check them on the primary source (their website, a public report), and note the date you checked.
  • Placeholders: some tools leave a visible marker where your figure is missing. Fill every one before exporting.

Step 3: Rewrite titles as takeaways

AI drafts often give slides topic labels ("Market overview", "Results"). A topic label tells the audience what the slide is about; a takeaway title tells them what to remember. If someone reads only your titles in order, they should get the whole argument.

Use your own verified facts in the takeaway: these rows are illustrations, not data.
Topic label (weak)Takeaway title (strong)
ResultsResponse time halved after the new process
Market overviewSmall firms are the segment nobody serves well
BudgetThe project pays for itself in the second year
Next stepsWe need a yes on the pilot by the end of the month

Step 4: Keep one idea per slide

When a slide carries two messages, the audience retains neither. Split it. A longer deck with clear slides is easier to follow than a short one with crowded slides.

  • Cut bullets to the essentials: three to five short lines; the details belong in what you say.
  • Pick the layout that fits the idea: one number for a striking figure, steps for a process, a timeline for history or a plan, a table for a comparison, a quote for a voice from the field.
  • Choose images that explain: a photo should show the subject, not decorate the slide.
  • Keep one visual style: one theme, the same fonts and colours from start to end.

Step 5: Export to PowerPoint and finish there

An editable .pptx file lets you make last-minute changes, add your logo, present offline and share a file your colleagues or teachers can open. Before you export, finish the text edits in the AI tool; after export, open the file in PowerPoint (or Google Slides, Keynote) and check fonts, line breaks and images, since rendering can differ between apps. Add speaker notes for anything you removed from the slides. Keep a PDF copy as a backup for the day.

Step 6: Rehearse out loud

An AI can draft slides; it cannot practise your talk. Rehearse at least once out loud with a timer. Each slide you cannot explain without reading it needs simpler text or should go. Note where you run long and cut there rather than speeding up. If you can, present once to a colleague or friend and ask a single question: "What was the main point?" If their answer is not your one-sentence goal from step 1, revise the titles.

Worked example: the same method with Slidy

Slidy (slidy.fr) is an AI presentation maker that takes a topic, pasted text or a PDF, Word, Excel, PowerPoint or text file (scanned PDFs are refused). It builds 5 to 35 slides in about 15 to 25 seconds, in the language of your topic, with layouts such as key figures, big number, process steps, timeline, comparison table, 2x2 matrix, quote, statement and photo slides, across 12 themes.

It does not invent figures: when your input lacks one, the slide shows "XX" so step 2 is easy to do. You edit text and figures in the browser, then export an editable .pptx. Every account gets 2 free AI presentations every week without a card; export costs €2.99 per deck or €9.99 for 5, with no subscription. It has no co-editing, no team workspace and no slide reordering. To start from a file, see PDF to PowerPoint.

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Frequently asked questions

Can AI make a whole presentation for me?+
It can make a solid first draft in seconds, but a good presentation still needs you: check the facts, rewrite titles as takeaways, cut each slide to one idea and rehearse.
Should I give the AI a topic or my own document?+
Your own document or notes whenever you have them. A topic alone gives generic content; your material gives a deck about your actual situation, with your figures.
How many slides should a presentation have?+
As a rough guide, about one slide per minute of talk. A 10-minute talk rarely needs more than 10 to 12 slides. Fewer, clearer slides beat more crowded ones.
Are AI-generated figures reliable?+
Treat every figure as unverified until you have traced it to your document or an official source. Remove anything you cannot source.
Can I edit an AI presentation in PowerPoint?+
Yes, if the tool exports an editable .pptx file. Slidy does: you edit in the browser, then export an editable PowerPoint for €2.99 per deck or €9.99 for 5.