500-page books in one pass
No chunking, no splitting, no upload-chapter-by-chapter dance. A full book PDF or EPUB indexes in one pass with chapter structure, footnotes, and figures preserved.
Full books, no chunking
ZH-CN
AI Book Summarizer
Summarize any book, with every line cited to the page.
Upload a full book in PDF, EPUB, or DOCX, and AskSia returns chapter-by-chapter summaries in one pass. Every claim links back to the exact page of the source book, with the referenced passage highlighted on hover. Up to 500 pages in one pass, 40+ languages, free to start.
SupportsPDFWordPowerPointMarkdownScanned PDF · OCREPUBTXTCSVGoogle Docs
4.8 / 5 · 2M+ documents summarized by students at 2000+ universities
asksia.ai/summarize
9 files indexed
Study materials
Upload
Library
Selected files
Biology_Chapter_12.pdf
500p
Lecture_Slides_W6.pptx
Prof_Chen_Notes.docx
Handwritten_Review.pdf
OCR
Study_Guide.md
Problem_Set_5.pdf
Research_NeurIPS.pdf
Midterm_Review.docx
Tutorial_Slides.pptx
Midterm study plan — from all 9 of your files
Focus on cellular respiration and the Calvin cycle first — they dominate your textbook1 and lecture slides2. Prof. Chen's notes flag three common exam traps3.
Biology_Chapter_12.pdf
1
5
Lecture_Slides_W6.pptx
2
Prof_Chen_Notes.docx
3
Handwritten_Review.pdf
4
Study_Guide.md
6
≡ Summary
Study guide
Quiz
Flash Card
PDF
Biology_Chapter_12.pdf
p. 217
Quick Answer
What is AskSia AI Book Summarizer?
AskSia AI Book Summarizer is a full-book AI study tool for college students. Upload a book in PDF, EPUB, or DOCX (native, scanned, or handwritten editions) and AskSia returns chapter-by-chapter summaries with [N] citations on every claim. Hover any citation to see the source page with the referenced passage highlighted. 500-page books process in one pass with chapter structure preserved. Useful for required reading, novels, philosophy texts, history books, and dense non-fiction.
100
files per session
500p
textbook in one pass
OCR
native, zero setup
100%
answers cited to page
Why AskSia
The book summarizer that reads the whole book.
Most book chatbots cap at 30 to 50 pages. AskSia reads 500-page books in one pass with chapter structure intact.
Chapter-by-chapter summaries
AskSia generates a structured summary for every chapter, with section-level breakdowns inside each. Useful for required reading, dense non-fiction, and exam-prep review.
Chapter structure
Cited to the exact book page
Every claim in the summary carries a [N] marker. Hover it to see the exact book page with the referenced passage highlighted. Click to jump into the book at that page.
Page-level citations
Native and scanned editions
Modern PDF e-books and scanned editions of older books both work. Native OCR runs automatically on scans, useful for archive books and out-of-print editions found in your library.
OCR, no setup
Cross-book reading lists
Drop a full reading list of books into one session and ask 'compare arguments across these books' or 'which book covers topic X best?'. Synthesized answer with per-book citations.
Reading list, one chat
From book to study pack
One click turns the book into chapter-by-chapter flashcards, a concept-check quiz, a thesis-ready outline, or a visual concept map. Every card links to the original book page.
Flashcards, quizzes, maps
How It Works
From book file to chapter summaries in minutes.
Drag and drop. No conversion, no chapter splitting, no per-file limit on Pro.
Step 01
Upload the book file
Drag the PDF, EPUB, or DOCX book file into AskSia. Native, scanned, and handwritten editions all work without conversion.
Drop documents here
PDF, Word, PPT, Markdown, scans, and photos
PDF
Biology_Chapter_12.pdf
500p
P
Lecture_Slides_W6.pptx
38
W
Prof_Chen_Notes.docx
12
MD
Study_Guide.md
4
9 files ready · 100 max
Step 02
AskSia indexes every chapter
AskSia detects chapter structure, runs OCR on scanned pages, indexes figures and footnotes, and builds a page-level citation index across the whole book.
Indexing in parallel
PDF
Textbook pages
DONE
P
Lecture slides
DONE
W
Professor notes
DONE
PDF
Handwritten review
OCR
MD
Markdown study guide
READING
100%
Sources indexed with page-level citation anchors.
Step 03
Read, ask, export
Read chapter-by-chapter summaries with [N] citations. Hover to see the source page highlighted. Ask Sia for flashcards, a quiz, or a thesis outline. Export as TXT, DOCX, PDF, Google Docs, or Notion.
What should I study first for the midterm?
Start with cellular respiration1 and the Calvin cycle2. Your handwritten review adds a comparison table4.
Biology_Chapter_12.pdf
p.217
Referenced passage highlighted on the original page.
Use Cases
How students summarize books with AskSia.
Required reading for class
Upload a full required-reading book and AskSia returns chapter-by-chapter summaries with page citations. Useful for catching up on assigned reading and preparing for class discussions.
Required reading
Novels and literature
Drop in a novel, a play, or a poetry collection, and AskSia returns chapter or act summaries with page citations. Useful for English literature, comparative lit, and humanities classes.
Literature courses
Philosophy and dense non-fiction
Philosophy texts, history books, and theoretical non-fiction compress into chapter summaries with page citations, useful for theory courses and qualifying exams.
Philosophy and theory
Textbooks and reference books
Full textbook PDFs index in one pass with chapter structure, figures, tables, and footnotes preserved. Ask cross-chapter questions and receive citations to the exact page.
Textbook study
Archive and out-of-print books
Scan an out-of-print book or pull a PDF from your library archive. AskSia OCRs the scan automatically and produces chapter summaries with page citations.
Archive scans
Foreign-language books
Upload a Spanish novel, a Mandarin philosophy text, or a French history book, and read English chapter summaries alongside the original, with page citations preserved.
40+ languages
Compare
AskSia vs. NotebookLM,
ChatPDF, and ChatGPT.
Most AI document tools are built for one file. AskSia is built for students studying a whole library at once.
| Feature | AskSia | NotebookLM | ChatPDF | ChatGPT File Upload |
|---|---|---|---|---|
| Max files per session | ✓ 100 | ~ 50 | 1 | ~ 10–20 |
| Native OCR for scanned PDFs | ✓ Auto, no setup | ~ limited | ✗ | ✗ |
| Handwritten notes recognition | ✓ 40+ languages | ✗ | ✗ | ✗ |
| Mixed-format session (PDF+PPT+DOCX+MD) | ✓ All at once | ~ partial | PDF only | ✓ |
| Hover-to-source page highlighting | ✓ Visual preview | ~ citations only | ~ page ref | ✗ |
| 500-page textbook in one pass | ✓ No chunking | ~ size limits | ~ size limits | ✗ truncation |
| Cross-document Q&A | ✓ Unified answer | ✓ | ✗ single doc | ~ degrades |
| Auto flashcards & quizzes | ✓ One click | ✗ | ✗ | ✗ |
| Free to start, no credit card | ✓ 100 files free | ✓ | ~ 1 file free | ✗ Plus needed |
FAQ
Common questions about book summarizing.
How do I summarize a book with AskSia?
Drag the book file (PDF, EPUB, or DOCX) into AskSia, or upload it from the mobile app. AskSia detects chapter structure, runs OCR on scanned editions, and returns a chapter-by-chapter summary with [N] citations on every claim. Hover any [N] to see the source page with the referenced passage highlighted.
How long can the book be?
AskSia processes 500-page books in a single pass with no chunking, on AskSia Pro and AskSia Super. Free accounts support books up to 30 pages per file (useful for short books, novellas, and book chapters). Pro and Super remove the per-file page cap entirely.
Does AskSia work with scanned and out-of-print books?
Yes. AskSia runs native OCR on scanned PDFs and image-only book scans automatically. Drop in a scan of an archive book, an out-of-print edition, or a photocopied chapter, and Sia reads it as cleanly as a native-text PDF. Handwriting recognition works for marginalia and personal annotations.
How accurate are the chapter summaries?
Every claim in each chapter summary is grounded in a [N] citation that links to the exact book page. You can hover any citation to see the source page highlighted, or click to jump into the book. The summary will not include any claim it cannot trace back to a specific page.
Can I summarize multiple books at once?
Yes. AskSia supports up to 100 files in one session. Drop a full reading list of books into one chat and ask cross-book questions like 'compare arguments across these books' or 'which book covers topic X best?'. Synthesized answer with per-book citations.
Can AskSia summarize books in other languages?
Yes. AskSia summarizes books in 40+ languages and detects the source language automatically. You can also translate chapter summaries at the same time, so a Spanish, Mandarin, or French book can be read in English alongside the original, with page citations preserved.
Can I generate flashcards or a study guide from the book?
Yes. One click turns the book into chapter-by-chapter flashcards, a concept-check quiz, a thesis-ready outline, or a visual concept map. Each card and question links back to the original book page via the same citation system.
Start Today
Upload the book. Read it in chapters.
Whether a 500-page textbook, a required-reading novel, or an archive book scan, AskSia summarizes any book with every claim cited to the exact page.