Why an AI summary matters
You have 200 pages to grasp before an exam or meeting. Reading it all is neither possible nor efficient: you'll forget half and miss the essentials. A good summary gives you the overall structure, the key concepts and the important numbers in 10% of the time.
The trap with human summaries is that they depend on whoever wrote them. A summary by someone who didn't get the document is useless. An AI summary doesn't have that bias: it grounds itself in the source text and you can always verify by going back.
Three depths to fit your need
The 5-line synthesis
For a 30-second overview. Perfect when you're deciding whether to read an article or chapter, or to check you remember the gist.
The one-page summary
The classic format for exam prep or a presentation. AI structures the content into 4 to 6 logical sections with key concepts, ready to print or paste into your notes.
Chapter-by-chapter summary
For long documents. Diane auto-splits the PDF into chapters and summarizes each. You can then revise one chapter at a time without losing the bigger picture.
Accuracy before brevity
A summary is only useful if it's faithful to the source. Diane shows for each summary section the original PDF excerpt and the page number. You can verify in one click, cite correctly, or dive deeper when needed.
The AI doesn't paraphrase randomly: it keeps the document's technical vocabulary, proper nouns and formulas. For a law course, articles stay as quoted. For a science course, notation is preserved.
From summary to flashcards in one click
Reading a summary is still passive learning. Once you have it, Diane can turn it into flashcards or a quiz to flip into active mode. That's the most effective sequence: understand quickly with the summary, then memorize durably with flashcards and FSRS-5 spaced repetition.
Use cases
Students: digest a course pack before a midterm, prepare an essay from papers, understand a required book in half the time. Pros: get up to speed on an 80-page report before a meeting, synthesize an internal procedure, prep a legal file. Curious readers: pull the essentials from a book you wouldn't read cover to cover.