AI Q&A · PDF Translation · Knowledge Base

A new way to read, powered by AI.

Turn your sources into a knowledge base you can talk to. Ask about PDF passages, generate bilingual PDFs, and retrieve insights across PDFs and EPUBs. Build notes, cloze exercises and mind maps from what you learn.

Your input updates the interactive example below. Open your knowledge base and upload sources to ask AI real questions.

How to use

AI knowledge workspace

Interactive preview

Outcome canvas

Every item stays editable

Reading sources

Sources, questions and knowledge cards

Current goal

Learn frontend development systematically

Mind map structure

Online whiteboard

Connect sources, questions, and next steps

1Ask AI about the source
2Retrieve across sources with citations
3Review with notes and active recall

AI-POWERED KNOWLEDGE BASE

Read to understand. Ask to explore. Review to remember.

AI questions, bilingual translation and knowledge retrieval support deep reading. Notes, cloze exercises and maps help you organize and revisit what you learn.

AI knowledge base Q&A

Members talk to ready PDFs and EPUBs in a folder to compare, summarize or write. Answers cite real pages and chapters.

Explore AI Knowledge Base Q&A

AI source Q&A

Read PDFs and EPUB chapters. Ask about a PDF or selected passage, request explanations and summaries, and check the sources behind an answer.

Explore AI PDF Reader

AI bilingual PDF translation

Members select source and target languages and pages to generate translated and bilingual PDFs. Confirm per-page credit costs before starting and choose the version to read.

Explore AI PDF Translation

Notes and cloze review

Annotate your understanding, hide key PDF passages, and recall before revealing answers. Use AI explanations to revisit gaps.

Explore Cloze Notes & Review

Visual organization on a whiteboard

Place reading insights, personal notes and research ideas on a canvas. Organize relationships with text, sketches and connectors.

Explore Online Whiteboard

AI map drafts from notes

Generate map drafts from PDF notes and knowledge cards. Review before applying, then edit branches, layouts and themes.

Explore Mind Map

From reading to knowledge

Turn reading into questions, evidence, notes and review.

Build your knowledge base, use AI to understand sources, and trace useful answers back to their context.

01

Build a knowledge base

Upload PDFs and EPUBs, organize folders, and read pages or chapters once parsing is complete.

02

Ask AI

Ask about a PDF passage, or use member folder chat to compare, summarize and write across sources. Check the citations.

03

Translate and take notes

Members choose languages and pages for bilingual PDFs. Annotate your understanding and save useful AI answers as cards.

04

Review and organize

Hide PDF passages for active recall, organize ideas in mind maps, and share sources and maps with appropriate access controls.

Whiteboard examples

Learning, research and writing begin with your sources.

These structures are interactive examples. Real AI answers retrieve evidence from your knowledge base.

Example
Understand the textbook
Ask and take notes
Practice active recall

AI-assisted exam preparation

Read textbooks, ask about difficult concepts, take notes, and check recall with cloze exercises.

Example
Collect PDFs and EPUBs
Compare with AI citations
Build research conclusions

Research across sources

Compare papers and reports in a folder, verify cited evidence, and develop your own conclusions.

Example
Choose translation languages
Read bilingual sources
Collect knowledge cards

Read across languages

Generate bilingual PDFs, select the version to read, and collect important concepts as notes and cards.

CHOOSE THE RIGHT TOOL

Built for deep reading and visual synthesis, with clear capability limits.

The workspace connects sources, notes, and structure. Professional OCR correction, publication layout, and real-time co-editing still need specialized tools.

A good fit for Rainbow Roadmap

  • Ask and annotate PDF sources, read EPUB chapters, and use folder AI Q&A across sources
  • Generate bilingual PDFs, verify citations and original text, and record your understanding
  • Practice active recall with cloze exercises, then organize insights in maps and whiteboards

Use a specialized tool when you need

  • Professional OCR correction or exact reconstruction of scanned layouts
  • Publication-grade PDF typesetting or editing original PDF page content
  • Real-time co-editing or a full project-management system

KNOWLEDGE SHARING · CONTROLLED ACCESS

Bring your reading outcomes beyond your knowledge base.

Share your notes and cloze exercises with password and email access controls. Recipients can learn, practice and save an independent copy to develop their own understanding.

Password and email access

Members choose notes and practice permissions separately, then set passwords, recipients and expiry. Watermarked originals remain a secondary source reference.

Save outcomes to your space

Signed-in recipients can save notes and exercises, edit them independently and add their own ideas. Maps can also be copied. Revoking source access does not delete saved outcomes.

Export and keep outcomes

Export whiteboards and maps as PNG. Owners decide whether controlled PDF shares allow downloads.

FAQ

What to know before reading with AI.

Formats, citations, membership and sharing, explained.

START HERE

Begin your next reading session with a good question.

Add PDFs and EPUBs to your knowledge base. Ask AI, verify the evidence, and build your own notes and knowledge structures.

Knowledge base

Checkable sources · Reusable notes · Controlled access

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