Make a difficult passage clear
Select the exact words that feel dense. Get an explanation matched to your level, not a generic summary of the whole PDF.
AI PDF Reader
The PDF reader that turns “I’m stuck” into “I get it.”
Stay in the paper. Select the part that slowed you down and get a clear, source-aware explanation — then turn the insight into something you remember.
Select a passageAsk in contextRemember what matters
Your source stays attached
Explain a diagram
Turn a pause into progress
Select the exact part you don’t understand. Then choose your next move.
Highlight the sentence, formula, or definition that stopped you. Explain it in plain language, or turn that same passage into a short quiz while the idea is still fresh.
Explain thisGet a clear answer at your level.
Quiz meCreate a quick recall question from this passage.
Made for the moments that usually stop you
From confusion to useful understanding.
Understand diagrams, not just text
Choose part of a figure and ask what it means. The explanation focuses on the idea the visual is trying to teach.
Keep the conversation grounded
Your selected passage or diagram remains attached to the chat, so follow-up questions start from the right context.
Read with intention
Mark ideas as important, unclear, or already known. Come back to the parts that deserve another look.
Turn insight into recall
Ask for a quick question from a passage while it is fresh. Active recall gives the insight a better chance of sticking.
The best study session is the one you can keep
Your next “aha” can happen wherever the PDF is open.
Settle in with a paper on your iPad, keep the original page in view, and ask for clarity without breaking your concentration.
Built for your uploaded PDFs with selectable text.
A simpler way through dense material
Stay with the source. Move the learning forward.
Choose the moment
Select a passage, or choose the part of a diagram you want to understand.
Get a clearer explanation
Your AI companion explains it in the context of the Disk and your current learning level.
Make it yours
Ask a follow-up, save a meaningful highlight, or turn the idea into a recall prompt.
Give your next PDF a learning companion.
Create a Disk from a source you care about and spend less time untangling it alone.