kitio.aiPDF Guru vs AI Book Summarizer
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. AI Book Summarizer is completely free, while PDF Guru is free trial.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- AI PDF summarizer
- Chat with a PDF
- PDF editing and signing
- File conversion
- Fillable forms and templates
- Chapter-by-chapter summaries
- Chat about the book
- EPUB and FB2 support
- Ready-made summary library
- 15 interface languages
| Feature | PDF Guru | AI Book Summarizer |
|---|---|---|
| Best for | Online PDF editor with an AI summarizer and document chat | Upload a book file for a chapter-by-chapter summary and Q&A chat |
| Category | Productivity | Productivity |
| Pricing model | Free trial | Free |
| Starting price | See pricing page | Free |
| Free plan | No, trial available | Yes, fully free |
| Made by | PDF Guru | AI Book Summarizer |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
AI Book Summarizer is completely free, while PDF Guru is free trial.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Nov 5, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
PDF Guru
- Handles long PDFs up to 100MB
- Full PDF toolkit alongside the AI
- Available in many languages
- Only the first file is free
- Subscription prices are not shown up front
- AI chat is limited to three questions free
AI Book Summarizer
- No account or card needed
- Handles e-book formats
- Follow-up questions in chat
- 30 MB file size cap
- Summaries can miss nuance
- Copyright of uploads is on the user
Which one should you choose?
Choose PDF Guru if you want:
- Handles long PDFs up to 100MB
- Full PDF toolkit alongside the AI
- Available in many languages
Watch out: only the first file is free.
Choose AI Book Summarizer if you want:
- No account or card needed
- Handles e-book formats
- Follow-up questions in chat
Watch out: 30 mb file size cap.
PDF Guru vs AI Book Summarizer FAQ
What is the difference between PDF Guru and AI Book Summarizer?
PDF Guru: Online PDF editor with an AI summarizer and document chat. AI Book Summarizer: Upload a book file for a chapter-by-chapter summary and Q&A chat. Both are productivity tools.
Is PDF Guru or AI Book Summarizer cheaper?
AI Book Summarizer is completely free, while PDF Guru is free trial.
Do PDF Guru and AI Book Summarizer have free plans?
PDF Guru: No, trial available. AI Book Summarizer: Yes, fully free.
Who makes PDF Guru?
PDF Guru is made by PDF Guru.
Who makes AI Book Summarizer?
AI Book Summarizer is made by AI Book Summarizer.
Which should I choose, PDF Guru or AI Book Summarizer?
Choose PDF Guru if you value handles long pdfs up to 100mb and full pdf toolkit alongside the ai. Choose AI Book Summarizer if you value no account or card needed and handles e-book formats.