Mask PDF

Cover sensitive areas with black boxes

Coordinates are in PDF points. Use origin = bottom-left (PDF default) or top-left (UI style).
Masking vs. Redaction

Masking draws black boxes over a PDF. True redaction permanently removes content so it cannot be recovered. If you need legally-safe redaction, use professional tools.

Use Cases
  • Legal documents
  • Financial records
  • Medical records (HIPAA)
  • Personal information (PII)
  • Confidential business data
Security

Our redaction tool will permanently remove content at the file level, ensuring sensitive information cannot be extracted or recovered.

Alternative Solutions

While our redaction tool is being developed, consider these alternatives:

  • Edit PDF: Use our Edit tool to modify content
  • Split PDF: Extract only the pages you need
  • Desktop software: Use Adobe Acrobat or similar tools

Check back soon for our full redaction feature!

Redact PDF Online — Complete Guide

Permanently mask sensitive text, account numbers, and faces in PDFs before sharing. PdfPeaks redaction covers selected regions so hidden content is not simply obscured visually but removed from the exported file appropriate for compliance workflows.

How It Works

Upload the PDF, select areas to redact in the preview, and apply. Review every page for missed PII, then download the redacted PDF. Always verify redaction on a test copy before publishing externally.

  • Step 1 — Upload: Open the PDF containing sensitive data.
  • Step 2 — Redact: Draw boxes over text or images to remove.
  • Step 3 — Verify: Download and search the output to confirm data is gone.

Security & Privacy

We treat uploaded files as sensitive data. When you use the PDF redaction tool on PdfPeaks, files are transferred over encrypted HTTPS/TLS connections and processed on secure servers in isolated temporary storage. They are used only to perform the operation you requested. Uploaded files and outputs are not permanently stored, are not used to train machine-learning models, and are never sold or shared with third parties for marketing. Temporary files are automatically removed after processing. For full details, see our Privacy Policy and Terms of Service.

Common Use Cases

Professionals, students, and everyday users rely on this tool for tasks such as:

  • FOIA / public records: Release documents with PII removed.
  • Legal discovery: Share exhibits without privileged lines.
  • Healthcare: De-identify patient info in PDF exports.
  • Finance: Hide account numbers on statements.
  • HR: Remove salary details from shared policies.

Tips for Best Results

Redaction is irreversible — keep an unredacted master offline. For password control use Protect PDF. Supported format: PDF (.pdf).

Frequently Asked Questions

Yes, this tool is completely free to use with no signup required.

Yes, all uploaded files are automatically deleted from our servers immediately after processing.

We support all standard PDF and image formats.

Most operations complete within seconds.

No, all tools work directly in your browser.