A ChatPDF Alternative That Never Uploads Your Files
Love ChatPDF but worried about uploading sensitive documents? SecureThink gives you the same AI document analysis — running 100% locally on your Mac.
ChatPDF is Great — Until You Have Sensitive Documents
ChatPDF made AI document analysis accessible to everyone. Upload a PDF, ask questions, get answers. It works brilliantly for research papers, public documents, and casual reading.
But if you’re a lawyer reviewing client contracts, an accountant handling financial records, or anyone working with confidential data — that upload button becomes a problem.
When you upload to ChatPDF:
- Your document travels to their cloud servers
- It’s stored for processing (deleted after 7 days)
- Third-party infrastructure handles your data
- You need internet access to use it
For many users, that’s acceptable. For professionals handling confidential information, it’s often not.
SecureThink: The Same Workflow, Total Privacy
SecureThink gives you the document Q&A experience you know from ChatPDF — but everything runs locally on your Mac. Your files never leave your device.
Drop in PDFs, Word documents, or audio files. Ask questions in plain English. Get answers with page citations. The AI runs on your own hardware using local large language models.
How SecureThink is different:
- 100% local processing — documents never upload anywhere
- Works offline — use it on a plane, in a secure facility, anywhere
- No third parties — you’re the only one with access to your data
- No data retention concerns — nothing to delete because nothing was uploaded
ChatPDF vs SecureThink
| Feature | ChatPDF | SecureThink |
|---|---|---|
| Ask questions about documents | ||
| Documents stay on your device | ||
| Works offline | ||
| No third-party data processing | ||
| Audio file transcription | ||
| Free tier available | 14-day trial | |
| Works on any device | Mac only |
ChatPDF is excellent for casual use. SecureThink is built for professionals who can’t compromise on privacy.
Who Switches to SecureThink?
SecureThink isn’t for everyone. If you’re analysing public research papers or casual reading, ChatPDF is probably fine. But if you’re handling confidential documents professionally, local AI makes sense.
Lawyers
Reviewing contracts, due diligence documents, and case files without risking client confidentiality
Accountants
Analysing financial statements and audit documents without cloud exposure
Healthcare
Summarising patient records and clinical notes while maintaining data protection compliance
Security-Conscious Users
Anyone who’s ever hesitated before uploading a document to a cloud AI tool
Ready to Try a Private Alternative?
SecureThink runs 100% locally on your Mac. Start your 14-day free trial — no credit card required.
Start Your 14-Day Free Trial