AI Document Summarizer

Summarize any document, with every line cited to the page.

Drop up to 100 documents into AskSia at once, in any format, and read clean summaries in seconds. Every claim links back to the exact page of the source document, with the referenced passage highlighted on hover. PDF, Word, PowerPoint, Markdown, scanned, handwritten. Free to start.

SupportsPDFWordPowerPointMarkdownScanned PDF · OCREPUBTXTCSVGoogle Docs
4.8 / 5 · 2M+ documents summarized by students at 2000+ universities
Quick Answer

What is AskSia AI Document Summarizer?

AskSia AI Document Summarizer is a multi-format AI study tool for college students. Upload up to 100 documents at once in any combination of PDF, DOCX, PPTX, Markdown, EPUB, scanned PDFs, and handwritten notes, and chat with all of them in one conversation. Every answer carries [N] citations linking back to the exact page of the exact source. Native OCR handles scans without setup, and 500-page documents process in one pass.

100
files per session
500p
textbook in one pass
OCR
native, zero setup
100%
answers cited to page
Why AskSia

The document summarizer built for full study sessions.

Most document chatbots cap at one file or one format. AskSia handles 100 documents at once across every common format, with citations to the exact page.

100 documents in one session

Drop your full course materials, lit-review reading list, or research-paper bundle into one chat. AskSia indexes every page across every file and lets you ask cross-document questions in one conversation.

100 docs, one session

Every common format

PDF (native and scanned), DOCX, DOC, PPTX, PPT, Markdown, EPUB, TXT, CSV, RTF, plus Google Docs and Google Slides links. Mix freely in the same session, no conversion needed.

Mixed formats

Scanned and handwritten too

Native OCR runs automatically on image-only PDFs, photocopied chapters, and scanned handwritten notebooks. Handwriting recognition works across 40+ languages with no setup.

OCR, handwriting, zero setup

Cited to the exact page

Every claim in the summary carries a [N] marker. Hover it to see the exact page of the source document with the passage highlighted in yellow. Click to jump into the file at that page.

Page-level citations

Cross-document questions

Ask 'compare definitions of X across these documents', 'which document covers topic Y?', or 'summarize everything across the library on Z'. Synthesized answer with per-file citations.

Cross-doc Q and A

From library to study pack

One click turns your document library into a cross-document study guide, definition flashcards, a concept-check quiz, or a visual concept map. Every card links to the original document page.

Flashcards, quizzes, maps
How It Works

From document folder to cited summary in seconds.

Drag and drop. No conversion, no per-file setup, no per-format friction.

Step 01

Drop your documents

Drag up to 100 documents into AskSia at once. Any mix of PDF, DOCX, PPTX, Markdown, EPUB, scanned PDFs, and handwritten notes is supported.

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 page

AskSia parses each format natively, runs OCR on scanned and handwritten content, and builds a unified page-level citation index across the entire library.

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 structured summaries with [N] citations. Hover to see the source page highlighted. Ask Sia for flashcards, a quiz, or a cross-document study guide. 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 documents with AskSia.

📚

Full course materials

Drop the syllabus, every lecture's slide deck, the professor's notes, and the problem sets, all in mixed formats. Sia builds a cross-document study map that mirrors the course.

Course materials
🧾

Research-paper documents

Load a stack of research PDFs, lab reports, supplementary DOCX files, and dataset CSVs together and ask cross-document research questions with per-file citations.

Research bundle
🧪

Mixed-format study packs

A textbook PDF plus PowerPoint slides plus Word notes plus Markdown summaries from a study group, all in one session with one citation system.

Mixed-format study
📝

Scanned and handwritten documents

Photograph or scan handwritten notebooks and drop them in alongside typed documents. Native OCR runs automatically and the handwriting reasons over the same as typed content.

Scans plus typed
🎯

Standardized test prep

Upload 20+ practice tests and official guides in PDF and DOCX, and ask 'which topics show up most?' or 'give me algebra questions from test 7 and 11'.

Test prep documents
🌏

Foreign-language documents

Mix Spanish, Mandarin, French, and English documents in one session. Ask in any language, receive answers in any language, 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 comparison between AskSia, NotebookLM, ChatPDF, and ChatGPT file upload
FeatureAskSiaNotebookLMChatPDFChatGPT File Upload
Max files per session✓ 100~ 501~ 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~ partialPDF 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 document summarizing.

How do I summarize a document with AskSia?
Drag the document into AskSia, or paste a Google Doc link. AskSia parses the document (any common format), runs OCR if needed, and returns a structured summary with [N] citations on every claim. Hover any [N] to see the exact page with the referenced passage highlighted.
How many documents can I upload at once?
Up to 100 documents in a single session on all plans. You can mix any of the supported formats freely. Free accounts support 100 files at 30 pages each; Pro and Super remove the per-file page cap.
What document formats does AskSia support?
AskSia supports PDF (native and scanned), DOCX, DOC, PPTX, PPT, Markdown (MD), EPUB, TXT, CSV, RTF, plus Google Docs and Google Slides links. All formats can be mixed freely in the same session.
Does AskSia handle scanned and handwritten documents?
Yes. AskSia runs native OCR on scanned PDFs and handwritten note files automatically, with no pre-processing or third-party OCR tool. Handwriting recognition works for typical student notebook handwriting across 40+ languages.
Can AskSia handle long documents?
Yes. Free accounts support 100 documents at 30 pages each. AskSia Pro and AskSia Super remove the per-file page cap, so a 500-page textbook PDF or a long research report can index in one pass alongside shorter documents.
Can I ask cross-document questions?
Yes. AskSia indexes every page across every document in the session and lets you ask cross-document questions like 'compare X across these files', 'which document covers Y?', or 'summarize everything on Z'. Synthesized answer with per-file citations.
Can I export the summaries?
Yes. Export individual summaries or cross-document study guides as TXT, DOCX, PDF, or send to Google Docs or Notion. Citations and page links are preserved in the export.
Start Today

Drop your documents. Read them in minutes.

Whether a textbook PDF, lecture slides, professor notes, or scanned handwritten content, AskSia summarizes any document with every claim cited to the page.

Let's Get in Touch

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