How to Redesign an Existing PowerPoint with AI (Without Losing a Single Number)

Most decks that need help are not new. They are the deck you gave last quarter, the one a colleague built in 2023, the one that has grown to 34 slides because nobody was allowed to delete anything. The content is fine. The design makes you apologise before slide two.

Redesigning that deck with AI takes about ten minutes when you know what the tools are doing. This is the version of the guide we wish existed when we started.

First, what "redesign with AI" actually means

There are three different products hiding behind that phrase.

Restylers keep your slides exactly as they are and change the colours, fonts and spacing. Fast, cheap, and a wall of bullets stays a wall of bullets in a nicer typeface.

Prompt generators ask you to describe the deck and make a new one. Useful for a deck that does not exist yet. For a deck that does, you spend the afternoon pasting your own content back in.

Rebuilders read the content of each slide and lay it out again from what it says. A slide with three numbers becomes a three-stat layout. A slide with a process becomes a process. This is the kind that fixes the slide you were embarrassed by, and it is what the steps below assume. PitchBoost is a rebuilder; see what the rebuild does to each slide for the detail.

Step 1: get the deck into .pptx

PowerPoint files are ready as they are. From Google Slides: File, Download, Microsoft PowerPoint. From Keynote: File, Export To, PowerPoint. Both exports keep the text, the tables and most charts as real objects, which matters for the next step. There is a separate note on Google Slides and Keynote if your deck came from either.

Step 2: know what the AI can and cannot read

A rebuilder works from the text it can extract from the file, so it pays to know what is in reach.

Read: slide titles, body text, bullets, tables, chart values (the numbers behind the chart, not a picture of it), and SmartArt.

Not read: speaker notes, text that lives inside an image (a screenshot of a table, a logo with a tagline baked in), and embedded objects from other programs.

If a key number exists only as a picture, either retype it on the slide before you upload or expect to add it back afterwards. Two minutes of checking here saves a surprise later.

Step 3: decide what "redesign" means for this deck

Two honest options, and the right one depends on the deck.

One slide in, one slide out. The order and the count stay the same; only the design changes. Right for a deck people already know, a compliance or training deck, anything where slide 14 has to stay slide 14.

Condense. The deck is rebuilt as a shorter version, usually 15 to 25 slides, with related slides combined and repetition dropped. Right for the 40-slide sales deck that grew by accretion. We wrote up how to cut a 40-slide deck to 15 without losing the story separately.

Step 4: give it your brand, not a theme

The difference between a deck that looks like your company and a deck that looks like a template is the brand source. A theme picker gives you a palette. Your website gives you the logo, the real colours and the typography your customers already recognise.

PitchBoost reads the website first and shows you the captured brand before anything generates, so you can swap a logo or correct a colour in the brand review. If you have no website, a company name and a logo upload do the job.

Step 5: generate, then check three things

A rebuild of a 20-slide deck takes a few minutes. When it lands, check these before you look at anything else:

1. The numbers. Every figure on the original should be on the rebuild, unchanged. PitchBoost runs a fidelity check that flags any number it could not source in your file rather than inventing one; treat any flag as a slide to open.
2. The order. In one-to-one mode the sequence should be identical. In condense mode, read the new deck once as a story and make sure nothing you rely on was merged away.
3. The charts. Values carried over as real data will be redrawn; a chart that was only a picture will come back as a picture. Decide which you want.

Then edit. Slide-level AI edits ("make this slide two columns", "shorten this") are faster than reopening the whole thing.

Step 6: take it away in the format you need

Download the PowerPoint if the deck will keep living in PowerPoint; the text boxes stay editable on paid plans. Download the PDF if it is going to be attached to an email. Share the link if you want to know who opened it and which slides they read; sharing a deck link covers what the viewer sees.

What it costs

On PitchBoost the free plan rebuilds one deck a month of up to 10 slides, with a small badge. Starter at $9 a month rebuilds up to 25 slides with no badge; Pro at $29 goes to 60. If you want to see what it does to your own slides before creating an account, the free redesign preview rebuilds your title slide and your busiest content slide with no sign-up.

The short version

Export to .pptx, check that your key numbers are text and not pictures, choose one-to-one or condense, point the tool at your website, and check the numbers when it lands. The deck you have is usually a good deck wearing bad clothes. Change the clothes.