How to Anonymize a Scanned Document Before Sharing It

To anonymize a scanned document, use a tool that can recognize text in the scan, let you review what it found, and mask sensitive details before sharing the resulting copy. ONYRI Sanitize describes a browser-based workflow that uses on-device optical character recognition (OCR) for scanned documents.

Review detected information in the scan

Add the scanned document in the browser and review the items the tool detects. Its stated detection categories include personal and sensitive information such as names, identification numbers, contact details, dates, and financial information.

The review step matters: you can exclude false positives, select text the tool missed, or mark an area such as a signature. For example, if a scan contains a handwritten signature that was not identified as text, you can mark its area for masking.

Produce a masked copy and check it before sharing

ONYRI Sanitize says it produces a masked copy intended to preserve the document’s layout. The company also says files stay on the user’s device rather than being uploaded or stored, and that masks are designed to prevent covered information from being recovered. These are product claims, not independently tested outcomes.

Before sharing, review the copy to confirm the information you meant to hide is covered and the remaining content is suitable for the recipient.

Who this workflow may suit

The tool is described as supporting PDF files, Word documents, and scans, with processing performed in the browser. It may suit someone preparing a scanned document to share by email, with colleagues, or with an AI service.

The available product information does not specify file-size limits or supported languages. If those details matter for your document, check them with the provider before relying on the workflow.

To prepare a scan for sharing, visit ONYRI Sanitize and review the masked copy before sending it.