How to Extract Slides from a Video (Lecture, Webinar, or Screen Recording)

You attended the webinar. You have the recording. But the presenter never shared the deck — and now you need those slides.

Manually scrubbing through a one-hour video and screenshotting every slide takes an afternoon and produces blurry, inconsistent captures. Here is the automatic way.

Why screenshots don't work

• You will miss slides that appear for a few seconds.
• Player controls and cursor overlays contaminate the captures.
• Screenshots inherit your window size, not the video's native resolution.
• You still have no transcript or notes to go with the slides.

The automatic approach

LensNote analyzes the video stream itself:

1. Import the recording — any format, up to 4 hours on Pro.
2. Slide change detection compares frames structurally (not just pixel diffs), so animations and camera cuts don't create duplicates, while genuine slide changes are never missed.
3. Full-resolution re-capture: each detected slide is re-extracted from the source video at its original resolution — enable Fine Visual Mode for up-to-4K captures.
4. OCR makes every word on every slide searchable.
5. Export to PPTX to get an editable deck, or PDF for sharing.

The whole pipeline runs in minutes, and the slides arrive aligned with a full transcript — click any slide to hear exactly what the speaker said about it.

Works for

• University lectures and MOOC videos
• Conference talks and webinars
• Internal training and all-hands recordings
• Software demos and screen recordings

Try it free — 180 processing minutes included, no credit card required.