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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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ComPDF
✓ verifiedFreemium
Cross-platform PDF SDK and cloud API for viewing, editing, converting and AI-processing documents in apps.
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Kagi
✓ verifiedFreemium
Ad-free, privacy-first search engine with AI tools and a browser, funded by subscriptions instead of tracking.
5.2M visits/mo
Pricing
No public pricing
Free trial available
No public pricing
Free trial available
Core features
- ✦PDF viewer and editor SDKs
- ✦Multi-platform support (web, server, desktop, mobile)
- ✦Cloud open API and self-hosted deployment
- ✦PDF conversion and generation
- ✦Forms, security and redaction
- ✦AI document parsing and extraction
- ✦Ad-free, tracker-free web search
- ✦Customizable ranking and site filters
- ✦Kagi Assistant with multiple LLMs
- ✦Orion privacy browser
- ✦Translate, News, and Summarize tools
- ✦Team plans for organizations
Use cases
- →Embed PDF viewing/editing into apps
- →Automate document conversion via API
- →Extract data from documents with AI
- →Searching without ads or tracking
- →Using AI models grounded in web results
- →Private browsing across devices
- →Summarizing long articles
- →Team-wide private search
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