Add voiceover to PowerPoint without recording it yourself
There are three ways to get narration onto a deck, and the right one depends on whether the deck will change, whether your voice matters, and how many of these you need. Here is how they actually compare.
20 free credits on signup — enough for a 2-page preview.
The three options, honestly
Record it in PowerPoint
Slide Show → Record Slide Show. Your own voice, per slide, free.
Best when the deck is final and your voice is the point — a founder update, a lecture you would record anyway.
Every edit means re-recording, and nothing writes the script for you.
Record your screen
OBS, Teams, Zoom — record yourself presenting and export the video.
Best when you need to demonstrate something live: clicking through a product, a tool, a dashboard.
One take, one session, and a stumble on slide 12 means starting over.
Generate the narration
Upload the deck, get a written script per page, approve it, render.
Best when the deck keeps changing, when you need many of them, or when nobody wants to be on mic.
The voice is synthetic unless you clone your own — and it reads the script, so a bad script sounds bad.
How the generated route works
- Step 1
Upload the PPTX or PDF — up to 40 pages. The page count and cost show up before anything runs.
- Step 2
Read the script that was written per page. Rewrite a line, ask for a full rewrite, switch language, or set the speaking rate between 0.8× and 1.5×.
- Step 3
Approve it and render. You get one MP4 with a timestamp per slide, typically 20–40 minutes for a full deck.
One thing to be realistic about: the narration reads what is on the page. A slide that says "Q3 results" and nothing else will get a vague sentence — a slide with the actual finding gets a useful one.
Questions about narrating a deck
What people ask before they pick one of the three routes.
Yes — Record Slide Show records your narration per slide and embeds it in the file. It is the right answer when you want your own voice and the deck is unlikely to change. What it cannot do is write the script for you, or re-record slide 12 without you sitting down again.
No. The narration is written from the text on each slide and read by a presenter you pick. You approve the script before it becomes audio, and you can rewrite any page or switch between 10 languages first.
Yes, if you want to. Cloning a voice you own takes 3–30 seconds of speech and goes through a review step before it can be used. Otherwise pick one of the built-in voices — no recording needed either way.
With a recorded narration you re-record it. Here the script is regenerated for the pages you changed and re-rendered — a page is roughly two minutes of finished video, so you are not re-doing the whole deck.
10 credits per page with a 2-page minimum, quoted before you commit. A 20-page deck is 200 credits — about $1.44 on the yearly plan. Signup includes 20 free credits, enough for a 2-page test on a real deck.
Your first video is on us
Sign up, verify your email, and get 20 free credits — enough to run a 2-page preview of one of your real decks end to end. No credit card required.
10 credits per page · Failed renders refunded · Cancel anytime