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Think about the last time you had to fix the same thing on fifteen slides: a font that was slightly wrong, a title that was a size too big, a page number you didn't want. It's tedious work. Google's new option lets you describe the change once and let Gemini, the company's AI assistant, handle the repetition.
What the feature actually does
According to Google, you can use Gemini on one slide, several slides, or the whole presentation. Gemini works out which slides need to change, then edits your existing slides directly. The result stays native and editable, so you can still click into any text box or shape and adjust it yourself.
Google lists four main ways to use it:
- Refresh the visual style. Update fonts, backgrounds, and color schemes across the deck. For example: "Update this whole deck to match the style of this [reference file]."
- Update the content. Simplify, expand, or shift the focus of your presentation, based on files stored in Google Drive. For example: "Update this presentation to include more details based on [reference file]."
- Combine or add slides. Merge several slides into one, or add new slides. For example: "Summarize slides 5–7 into a single slide."
- Make the styling consistent. Align title styles or remove page numbers everywhere. For example: "Make the titles on all slides the same font size and color."
A prompt, in case the word is new, is simply the instruction you type to an AI. The clearer it names the slides and the change, the more likely the result is what you wanted.
Checking and undoing the changes
When Gemini finishes, a summary of what it changed appears in the side panel. Google says the edits are applied as if you had made them by hand. That means the normal safety net applies: you can use undo, or look through version history to review or revert the changes.
Before you accept a big edit, it's worth clicking through a few slides. Spot-check the first, the middle, and the last one. If something looks off, revert and try a narrower prompt, such as naming a single slide range.
Wrap-up
Gemini in Google Slides is designed to take the repetitive parts of editing off your hands: restyling, tidying titles, and condensing slides, all from one prompt. You stay in charge, because every edit can be reviewed or undone. Your next step: open a deck you already have, pick one small change you keep repeating, and write it as a single prompt, naming the slides it should affect.