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
✕
Sanctum AI
✓ verifiedFree
Free Mac/Windows app for running open-source LLMs fully offline with encrypted, on-device private chat and PDF Q&A.
2.8K visits/mo
✕
AI PDF Summarizer
✓ verifiedFree trial
Online PDF suite for summarizing, editing, converting, and signing.
12M visits/mo8.7K saves
✕
PDFgear
✓ verifiedFree
Free desktop and web PDF suite for editing, converting, OCR, and signing, with built-in AI chat and summarization.
3.0M visits/mo310 saves
Pricing
No public pricing
No public pricing
No public pricing
Core features
- ✦Local execution of open-source LLMs, no internet required after install
- ✦On-device AES-256 encrypted data vault
- ✦Hugging Face integration for browsing/downloading GGUF models
- ✦Private PDF chat and summarization
- ✦Cross-platform support for Mac (Intel/M-series) and Windows
- ✦AI-powered PDF summarization
- ✦PDF editing and signing
- ✦PDF conversion to various formats
- ✦Form filling and annotation
- ✦Edit text, images, and form fields in PDFs
- ✦Convert between PDF, Word, Excel, PowerPoint, and images
- ✦OCR with 30+ language support
- ✦Annotate with highlights, notes, and stamps
- ✦AI chat and summarization built into the app
- ✦Cross-device sync across desktop, web, and mobile
Use cases
- →Chatting with an AI assistant without sending data to the cloud
- →Analyzing sensitive documents like financial or health records privately
- →Summarizing and querying PDFs offline
- →Experimenting with different open-source models locally
- →Summarizing research papers and books
- →Editing and signing contracts
- →Converting PDFs to Word or JPG
- →Filling out tax and official forms
- →Editing and converting PDFs without paying for Adobe Acrobat
- →Summarizing long PDFs with built-in AI chat
- →OCR-ing scanned documents into editable text
- →Signing documents on desktop or mobile
Visit