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Convert a Lecture Video into PDF Notes (the 5-Minute Method)

Stop re-watching lectures at 2x. Turn any recorded lecture into a searchable PDF with slides, transcript, and key takeaways.

LensNote Team1 min read

Re-watching a 90-minute lecture to make notes takes… 90 minutes. Usually more. Here is the workflow that replaces it.

The 5-minute method

  1. Import the lecture recording into LensNote — the file from your LMS, a downloaded MOOC video, or your own screen recording.
  2. Processing runs automatically: slide extraction, speech-to-text, and a structured summary with key takeaways. A 90-minute lecture processes in a fraction of its runtime; you'll get an email when it's done.
  3. Skim the slides first. Each slide links to the exact moment in the transcript — read what the professor said only where you need depth.
  4. Export to PDF. One document: every slide, the full transcript, and the summary. Searchable, printable, revisable.

Why this beats note-taking apps

Typed notes during a live lecture capture maybe 20% of the content, and none of the visuals. Processing the recording afterwards captures everything — then your job is just review, which is what studying should be.

Exam-season tips

  • Batch-process a whole course: Pro handles 1,200 minutes per month, roughly 15 lectures.
  • Export the plain-text transcript alongside the PDF if your notes live in Notion or Obsidian.
  • Use Word export when you want to annotate the notes themselves.

Start your free trial — 180 minutes of processing, no card required.