I turned a 40-page research document into a 12-slide presentation in six minutes. Not a rough outline I'd need to rebuild from scratch. An actual deck — structured, captioned, ready to export to PowerPoint and polish.

Most people still think of NotebookLM as Google's summarisation tool. Upload some documents, get an audio overview, maybe ask a few questions. Useful, but limited. That changed in February 2026 when Google quietly shipped two features that transformed it into something considerably more practical: prompt-based slide revision and direct PPTX export.

One bit of housekeeping first: as of July 2026, NotebookLM is called Gemini Notebook. Same product, same features, new badge — Google is pulling everything under the Gemini brand. I'll keep saying NotebookLM below, because it's the name everyone still searches for, but if your screen says Gemini Notebook, you're in the right place.

If turning documents into slides is the output side of NotebookLM, the input side is just as powerful — I've written separately about using NotebookLM as a strategy copilot to interrogate your own documents.

If you haven't looked at NotebookLM since it launched, you're missing one of the most underrated AI workflows available right now. And I say that as someone who's watched most AI tool announcements land somewhere between overpromised and underwhelming.

From documents to deck in five steps

1. Upload your source material. Add PDFs, Google Docs, web pages, or audio files to a NotebookLM notebook. It indexes everything and reasons exclusively over what you've given it — no hallucinated statistics from the model's training data, no invented references. Just your documents.

2. Choose your format. Hit the Slide Deck button in the Studio panel. You'll get two options: Detailed Deck (comprehensive, text-heavy, designed to stand alone) or Presenter Slides (cleaner, visual, meant to support you while you talk). Pick whichever matches the context.

3. Add a custom prompt. This is where it stops being a toy. Before generation, you can tell NotebookLM to emphasise certain themes, target a particular audience, or structure the deck around specific questions. "Focus on the financial implications and skip the technical architecture" produces a genuinely different deck from the default. That's not cosmetic — it changes which content gets surfaced and how arguments flow between slides.

4. Revise individual slides. This is the February 2026 update that made the whole thing practical. Click the revise button on any slide, type what you want changed — "add the Q3 revenue figures," "simplify this to three bullet points," "make this more visual" — and it rebuilds that slide while leaving the rest untouched. You can stack multiple revisions, which means you're iterating rather than starting over.

5. Export to PowerPoint. Download as a .pptx file with editable text boxes, layouts, and formatting you can actually work with. Previous versions only exported as PDF, effectively a screenshot with no editability. The PPTX export is what makes this genuinely practical rather than just impressive.

A full deck renders in about 60 to 90 seconds. The whole process — upload, generate, revise, export — takes under ten minutes for most documents.

What to know before you start

A few things I've learnt from using this regularly:

Revisions don't re-read your sources. When you revise a slide, NotebookLM works from what's already on it — not your original documents. If you want to pull in new information, regenerate that slide from scratch with a more specific prompt rather than revising the existing one.

Exported layouts aren't pixel-perfect. Some elements come through as images rather than editable text. It's a first draft in PowerPoint, not a finished product. But as a starting point, it's dramatically faster than building from a blank canvas.

Plan for 10 minutes of polish. The workflow I've settled on: generate in NotebookLM, revise until the structure and content are right, export to PowerPoint, then spend 10 minutes on brand formatting and design. That last mile still needs a human. Probably always will. But the first 80% of the work — the part where you're staring at a blank slide wondering what belongs on it — that's gone.

Where it shines, and where it doesn't

It's strongest when you're turning dense source material into something presentable — research reports, meeting notes, strategic documents, long briefings. Anything where the hard work is distilling, not creating. I've used it to prep board meeting decks from quarterly reports and to turn client research into stakeholder presentations. Both worked well because the source material was rich and the task was essentially editorial: find the signal, structure it, make it clear.

It falls short on anything requiring design sophistication, brand consistency, or complex visual storytelling. If your slides need custom illustrations, precise typography, or animations that build an argument visually, this isn't your tool. It generates functional slides, not beautiful ones. The aesthetics are conference-room adequate, not keynote-worthy.

It also can't work with real-time data. Everything runs through the documents you've uploaded, so if you need live dashboards or current figures that aren't in your source files, you'll be adding those manually after export.

That gap is starting to close, though. The July 2026 update that arrived with the rename gives every notebook a secure cloud computer, so it can now write and run code against your sources — proper data analysis rather than summarisation. It's rolling out gradually (Ultra tiers first, Pro to follow) and it doesn't change the slide workflow above, but it points at where this is heading: decks whose charts are computed from your data rather than described from it.

One workflow, many fewer steps

This is part of something I keep noticing across AI tools: the collapse of multi-step workflows into single actions. What used to require reading a document, taking notes, outlining a presentation, building slides, and iterating on content is now a single prompt with a refinement loop.

The skill isn't using the tool — anyone can click a button. The skill is knowing which tool to reach for and when. I've written before about how most people use AI like a Ferrari in first gear. NotebookLM's presentation feature is a good example of a capability that exists, works, and almost nobody's using because they filed the product under "summarisation" and stopped paying attention.

And if your team already tried Google's AI features and bounced off them, that's worth examining separately. The adoption gap between enabled and actually used is where most AI productivity gains go to die. NotebookLM's slide generation won't help if nobody on your team knows it exists.

Quick answers

Is NotebookLM the same thing as Gemini Notebook?

Yes. Google renamed NotebookLM to Gemini Notebook in July 2026. It's the same standalone product — slide generation, per-slide revision and .pptx export all work exactly as before — with deeper ties to the Gemini app and, soon, Google Search.

Can NotebookLM create PowerPoint presentations?

Yes. Since February 2026, NotebookLM generates slide decks from your uploaded documents and exports them directly as .pptx files. You get editable PowerPoint slides, not just static images or PDFs.

How long does NotebookLM take to generate a slide deck?

About 60 to 90 seconds for a full deck. You can continue working in your notebook while it generates in the background. Revising individual slides takes a few seconds each.

What's the difference between Detailed Deck and Presenter Slides in NotebookLM?

Detailed Decks are comprehensive and text-heavy — designed to work as standalone documents you could email. Presenter Slides are cleaner and more visual, with key talking points meant to support you while you speak.

Does NotebookLM replace PowerPoint for presentations?

Not entirely. It handles the first 80% brilliantly — content selection, structure, initial slide creation. But design polish, brand formatting, animations, and complex visual storytelling still need PowerPoint or Google Slides. The best workflow is generating in NotebookLM and finishing in your preferred presentation tool.