---
title: "Secure AI PII Redactor | Local PDF Data Masking"
description: "Automatically strip credit cards, tax IDs, and personal identifiable information from PDFs locally. No data ever leaves your device."
lang: en
json-ld: |
  {
    "@context": "https://schema.org",
    "@graph": [
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        "@type": "SoftwareApplication",
        "name": "Auto-Redact PDF",
        "description": "Automatically detect and redact personal information like SSNs, credit cards, emails, and phone numbers from PDFs.",
        "url": "https://edgedocs.co/auto-redact-pdf",
        "applicationCategory": "UtilitiesApplication",
        "operatingSystem": "Web Browser",
        "offers": {
          "@type": "Offer",
          "price": "0",
          "priceCurrency": "USD"
        },
        "featureList": [
          "Client-side processing",
          "No file uploads required",
          "Privacy-first design",
          "No-upload processing"
        ]
      },
      {
        "@type": "WebApplication",
        "name": "Auto-Redact PDF",
        "description": "Automatically detect and redact personal information like SSNs, credit cards, emails, and phone numbers from PDFs.",
        "url": "https://edgedocs.co/auto-redact-pdf",
        "applicationCategory": "UtilitiesApplication",
        "operatingSystem": "Web Browser",
        "browserRequirements": "Requires a modern web browser with JavaScript enabled.",
        "permissions": "Privacy-first: No file uploads required.",
        "additionalProperty": [
          {
            "@type": "PropertyValue",
            "name": "storageRequirements",
            "value": "Processes files locally in-memory; no cloud storage used."
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          "@type": "Offer",
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          "priceCurrency": "USD"
        }
      },
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        "@type": "HowTo",
        "name": "How to Auto-redact PII from PDF with EdgeDocs",
        "description": "Auto-redact PII from PDF files privately in your browser using EdgeDocs Auto-Redact PDF.",
        "step": [
          {
            "@type": "HowToStep",
            "position": 1,
            "name": "Select your file",
            "text": "Drop your file into EdgeDocs Auto-Redact PDF."
          },
          {
            "@type": "HowToStep",
            "position": 2,
            "name": "Auto-redact PII from PDF in your browser",
            "text": "EdgeDocs processes your file locally — nothing is uploaded to any server."
          },
          {
            "@type": "HowToStep",
            "position": 3,
            "name": "Download the result",
            "text": "Save your processed file directly from your browser."
          }
        ]
      },
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        "itemListElement": [
          {
            "@type": "ListItem",
            "position": 1,
            "name": "Home",
            "item": "https://edgedocs.co"
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            "@type": "Question",
            "name": "What types of PII does auto-redaction detect?",
            "acceptedAnswer": {
              "@type": "Answer",
              "text": "The tool scans for Social Security numbers, credit card numbers, email addresses, phone numbers, and other common PII patterns. Detected items are highlighted for your review before redaction is applied."
            }
          },
          {
            "@type": "Question",
            "name": "Is the redaction automatic or do I review first?",
            "acceptedAnswer": {
              "@type": "Answer",
              "text": "The tool detects and flags PII automatically, but you review and confirm what gets redacted before it's applied. This prevents accidental removal of content that matches a pattern but isn't actually sensitive."
            }
          },
          {
            "@type": "Question",
            "name": "Is auto-redaction as secure as manual redaction?",
            "acceptedAnswer": {
              "@type": "Answer",
              "text": "Yes. Both methods use the same rasterization technique — the text is permanently destroyed, not covered with a box. Auto-redaction simply automates the detection step."
            }
          },
          {
            "@type": "Question",
            "name": "Does the PII detection happen on a server?",
            "acceptedAnswer": {
              "@type": "Answer",
              "text": "No. The pattern matching runs entirely in your browser using local JavaScript. Your document — including all the PII it contains — never leaves your device."
            }
          },
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            "@type": "Question",
            "name": "Can it detect PII in scanned documents?",
            "acceptedAnswer": {
              "@type": "Answer",
              "text": "Auto-redaction works on text-based PDFs where the text is selectable. For scanned documents, run them through PDF OCR first to create a text layer, then use auto-redact on the searchable PDF."
            }
          }
        ]
      }
    ]
  }
---

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# Auto-Redact PII

Automatically detect SSNs, credit cards, emails, and phone numbers. Review and redact with one click.

Free: 25MB max file size

Drop PDF files here or click to browse

Maximum file size: 25MB

🔒 Your files never leave your browser. All processing is done locally.

No-Upload Processing 

Network requests during processing: 0 

Related Secure Tools

[Redact PDF](/redact-pdf)[Strip Metadata](/strip-pdf-metadata)[Sanitize for LLMs](/sanitize-pdf)

EdgeDocs architecture ensures HIPAA and GDPR compliance by preventing data transmission to external servers.

## Automatically Find and Redact Sensitive Data

Manually finding every phone number, email address, and Social Security number in a long document is tedious and risky — miss one and you have a data breach. EdgeDocs scans for common PII patterns automatically, all within your browser.

## Frequently Asked Questions

### What types of PII does auto-redaction detect?

### Is the redaction automatic or do I review first?

### Is auto-redaction as secure as manual redaction?

### Does the PII detection happen on a server?

### Can it detect PII in scanned documents?

[

Edge Docs 



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### Resources

-   [Blog](/blog)
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### Support

-   [Request Feature](/feedback)
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### Trust

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