You're uploading sensitive documents — contracts, medical records, tax forms, personal IDs — to an OCR tool. What happens to that data? Who can see it? How long is it stored? These are critical questions that most OCR tools don't answer clearly. This guide helps you evaluate OCR privacy practices and protect your documents.
The Privacy Problem With Free OCR Tools
Many “free” OCR tools monetize your data. They store uploaded documents indefinitely, use them to train AI models, or sell extracted text to data brokers. Some popular tools bury this in their terms of service. Before uploading anything sensitive, always check:
- Data retention: How long are uploaded files stored? Are they deleted after processing?
- Training usage: Does the tool use your documents to train its AI? Can you opt out?
- Third-party sharing: Is extracted text shared with advertisers, analytics providers, or other third parties?
- Encryption: Are files encrypted in transit (TLS) and at rest (AES-256)?
- Server location: Where are documents processed? This matters for GDPR, HIPAA, and data sovereignty compliance.
How ScanThisText Handles Your Data
Transparency matters. Here's exactly what happens when you scan a document with ScanThisText:
- Your file is uploaded over HTTPS straight to our cloud storage (Amazon S3), which stores it encrypted
- The OCR engine extracts text — typically in 2–5 seconds
- Extracted text is returned to your browser and saved to your scan history
- Once you sign in, you can open the original image again or remove the scan from your history. On the Free plan, history and images cover the last 30 days; paid plans keep them longer
- We don't sell your data or use your documents to train AI models. To read them, we send them to service providers such as Google Cloud Vision, which recognizes the text, and Anthropic, which pulls fields out of invoices and receipts and answers Ask questions
Best Practices for Secure Document Scanning
- Use tools with clear privacy policies. If the privacy page is vague or nonexistent, your data is the product.
- Prefer browser-based processing over tools that require file uploads to opaque servers. Client-side OCR keeps data on your device.
- Redact sensitive fields (SSN, account numbers) before uploading if the document contains information beyond what you need extracted.
- Use unique, strong passwords for any OCR tool accounts to prevent unauthorized access to your scan history.
- Review and delete old scans regularly from your history to minimize data exposure.
Compliance Considerations
If you process documents covered by regulations (HIPAA for medical records, GDPR for EU personal data, SOX for financial records), ensure your OCR provider can demonstrate compliance. Look for SOC 2 certification, data processing agreements (DPAs), and documented data retention policies.
Scan With Confidence
Try ScanThisText free → Privacy-first OCR with transparent data handling. No account required, no data selling, no surprises.
