Compare tools
Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
⇄ Comparison dimension — pick the market you're actually shopping in
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PDF.ai
✓ verifiedFreemium
Well-known chat-with-PDF tool for summarizing and extracting; strong traffic.
484K visits/mo2.7K saves
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SlideSpeak AI
✓ verifiedFreemium
AI platform that converts PDFs, Word, Excel, or text into editable native PowerPoint decks with an in-app AI assistant.
765K visits/mo26K saves
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Readable
✓ verifiedPaid
Instant English-to-Japanese PDF translation preserving layout; useful focused tool.
87K visits/mo177 saves
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FGenEds
✓ verifiedFreemium
Turns lecture-slide PDFs into concise cheat sheets; for students who want quick study aids for general-education classes.
1.7K visits/mo8.7K saves
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Side Reader
✓ verifiedFreemium
Browser extension that adds a PDF viewer/chat sidebar to ChatGPT, Claude, and DeepSeek for reading and querying documents.
341 visits/mo
Pricing
Hobby: $0
Pro: $10/mo
Ultimate: $20/user/mo
Enterprise: $30/user/mo
Free: $0 (100 credits at sign-up, 50MB file size limit)
Premium: $29/month (1,000 credits/month, no file size limit)
Custom template add-on: $129 one-time
Pro Standard (Yearly): 800 /month
Pro Premium (Yearly): 4,000 /month
for Business: Contact for Pricing
No public pricing
Free: $0/mo (limited uploads and file size)
Lifetime: $29 one-time (higher upload limits, capture-and-ask, custom prompts)
Core features
- ✦Chat with PDF documents
- ✦Summarize PDF content
- ✦Extract information from PDFs
- ✦Source citation for answers
- ✦OCR support
- ✦AI Agents for document analysis
- ✦Capture & Ask feature
- ✦Chatbot widget (add-on)
- ✦Generate presentations from PDF, Word, Excel, website, or text input
- ✦AI assistant 'Charles' for rewriting, summarizing, and image generation
- ✦AI-narrated video presentations with 50+ voices
- ✦Automatic brand styling with custom templates
- ✦Multi-language translation preserving slide layout
- ✦API for programmatic presentation generation
- ✦Instant PDF translation
- ✦Layout preservation
- ✦Side-by-side English and Japanese viewing
- ✦Chrome extension for one-click translation
- ✦Translation without DeepL subscription (optional)
- ✦PDF lecture-slide upload
- ✦AI-generated cheat sheets
- ✦Example output preview
- ✦Free cheat sheets to start
- ✦Split-screen PDF viewer alongside AI chat
- ✦Zoom and text-copy tools for PDFs
- ✦Upload history tracking
- ✦Capture-and-ask screenshot querying (paid)
- ✦Custom prompt support (paid)
Use cases
- →Analyzing legal documents
- →Summarizing financial reports
- →Extracting key information from books
- →Reviewing scientific papers
- →Understanding user manuals
- →Creating employee training materials
- →Turning a report or spec document into a client-ready deck
- →Summarizing long PowerPoint or PDF files
- →Producing narrated video versions of a presentation
- →Applying consistent branding across many decks
- →Translating English research papers into Japanese
- →Translating technical specifications from English to Japanese
- →Quickly understanding English documents in Japanese
- →Condensing gen-ed lecture slides for studying
- →Making quick cheat sheets before exams
- →Researchers reading and querying PDFs via AI
- →Students studying documents with AI help
- →Professionals reviewing reports using ChatGPT/Claude/DeepSeek
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