AI Document Redaction

Optimise time-consuming business processes.

How ThinkShare designed and built an AI-powered PII redaction application using Microsoft Azure AI and the Power Platform to protect sensitive data and ensure GDPR compliance.

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A leading professional membership body needed a secure, automated way to redact Personally Identifiable Information (PII) from documents before they could be shared — safely, consistently, and in compliance with GDPR. Manual redaction was slow, error-prone, and placed significant burden on staff. ThinkShare was engaged to design and deliver a fully automated AI redaction solution built on Microsoft Azure and the Power Platform.

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The applications have been well received by the crew, which they have found easy to use and this allows them to provide up-to-date reports to the appropriate Technical Manager or Superintendent.

CalMac

It's given us peace of mind that our Power Apps are running smoothly and we've been able to develop our solutions further with their expertise.

G&O Springs

The applications have been well received by the crew, which they have found easy to use and this allows them to provide up-to-date reports to the appropriate Technical Manager or Superintendent.

CalMac

It's given us peace of mind that our Power Apps are running smoothly and we've been able to develop our solutions further with their expertise.

G&O Springs

ThinkShare delivered a custom AI Document Redaction app integrating Azure AI Language Services, SharePoint, Power Apps, Power Automate, and Robotic Process Automation. The solution gives staff a simple, familiar interface to submit documents for redaction, review AI-identified PII, and approve or adjust before the redacted document is saved back to SharePoint.

Azure AI Language Services automatically scans uploaded documents (PDF, DOCX, TXT) and identifies PII categories — names, addresses, phone numbers, email addresses, and more. Documents are temporarily stored in encrypted Azure Blob Storage during processing, ensuring all data transfers meet GDPR and security requirements.

Staff review and approve AI-suggested redactions through a Power App, with the ability to resurface specific items before final approval. Power Automate orchestrates the workflow end-to-end, and a Desktop Flow (RPA) handles the precision replacement of redacted text within Word and PDF documents before the file is returned to SharePoint.

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