OtterNote LogoOtterNote
The AI Reading CompanionBuilt for complex docs

Transform PDFs Into Immersive Lectures

Stop re-reading. Start understanding. Get instant clarity on research papers, textbooks, and reports with video lectures and page-by-page insights.

OtterNote interface showing Immersive Video Lectures
Page-Aware Chat
Instant Analysis
New Feature

Immersive Video Lectures
That Actually Teach.

Unlike 20-minute summaries of entire books, OtterNote generates 20-60 minutes of real teaching for every 20 pages. It's like having a professor personally guide you through the material, explaining concepts as they appear in the text.

Narrated Audio

Professional, clear explanations

Dynamic Blackboard

Visual notes in real-time

Auto-Scrolling

Follows the text automatically

Smart Highlights

Focus on what matters

Depth Over Gimmicks

Quality learning takes time.

Standard Summary5 mins (Shallow)
OtterNote Lecture45 mins (Deep Dive)

Reading Tools That Actually Help

Beyond lectures, OtterNote acts like a smart study partner who's always on the same page as you.

Between The Lines

Like having expert annotations in the margins. AI insights appear right next to passages, clarifying dense text before you even have to ask.

Context Aware AI

Don't search the whole book. Ask questions specifically about the page you are reading right now.

Image to LaTeX

Snap a photo of your handwritten equations and get perfect, searchable LaTeX text instantly.

Sticky Notes

Thoughts stick to the exact page where you had them. Review your notes in context, exactly where they belong.

How It Works

From PDF to comprehension in three steps.

1

Drag & drop PDF files here

Max size: 25 MB · PDF files only

Ready to upload

Upload Documents

Simply drag and drop your PDFs. OtterNote accepts huge documents without complaint.

2
Lecture: Quantum Mechanics
Page 12/4523:45
Source Text

Entanglement

KEYEPR Paradox

Wave Function:

|ψ⟩ = α|0⟩ + β|1⟩

Live Sync
1.5x Speed
20-60 min

Generate Lecture

Choose a chapter or page range and let the AI craft a synchronized video lecture.

3
AI Chat
Page 1
What is quantum entanglement?
Based on the definition on page 1, quantum entanglement is when particles become connected...
Ask about this page...

Interact & Explore

Ask questions, chat with the document, and take notes that stick to the text.

Frequently Asked Questions

While NotebookLM creates 20-minute podcasts for entire books (making them essentially summaries), our Immersive Lectures provide 20-60 minutes of in-depth coverage for just 20 pages. You get a real lecture experience with synchronized page scrolling, text highlighting, and a dynamic blackboard - actually helping you understand the material, not just skim it.
OtterNote isn't just a PDF reader or summarizer - it's a reading companion that reads WITH you. Our Between The Lines feature, reading-aware AI chat, and new Immersive Video Lectures understand exactly what you're reading and where you are in the document, providing deeper insights as you go.
Other PDF chat-bots like Notebook LM do a search over the entire document on every question you ask. They are used to find quick answers and summarize large texts. OtterNote on the other hand knows what page you are currently reading and it reads with you. With OtterNote you're not searching for answers, you're reading deeply and you have a companion to help you understand what you are reading.
Yes! While OtterNote is optimized for dense material like textbooks, academic papers, and research documents, it works equally well with novels, articles, reports, and any other PDF content.
Absolutely. We take privacy seriously. Your documents and reading data are encrypted and never shared with third parties. You have full control over your content.
We offer a free tier with basic features and premium plans starting at $18 CAD/month for unlimited AI interactions, unlimited Between The Lines generations, 50 Immersive Lectures, and PDFs of up to 1000 pages.

Ready to Master Your Reading?

Join thousands of students and researchers who are using the OtterNote toolkit to finally understand their material.