Redact PDF Free
Permanently remove sensitive information from PDF documents. Black out text, personal data, and private information — 100% private, no upload required.
Upload PDF to Redact
Click to browse or drag and drop your PDF file here
Permanent redaction · Multi-page support · 100% private · GDPR compliant
Permanent Removal
Content is permanently deleted, not just covered. Redacted information cannot be recovered by anyone.
Easy to Use
Drag to select rectangular areas. Works on any device with touch or mouse — no software needed.
100% Private
Your sensitive documents never leave your device. All processing happens locally in your browser.
GDPR & HIPAA Ready
Meets technical safeguards for data protection. Helps comply with GDPR Article 17 and HIPAA requirements.
What is PDF Redaction?
PDF redaction is the permanent removal of sensitive information from documents. Unlike highlighting or covering text with shapes, true redaction completely deletes the underlying content from the PDF file structure. Our tool is permanent and irreversible — the content is completely removed from the file.
True Redaction (Our Tool)
- ✓ Content is permanently deleted from the PDF
- ✓ Information cannot be recovered or revealed
- ✓ GDPR and HIPAA compliant for legal use
- ✓ Safe to share publicly or with third parties
Fake Redaction (Insecure)
- ✗ Simply covers text with black boxes or shapes
- ✗ Original text remains in the file and can be copied
- ✗ Can be revealed by moving or deleting the overlay
- ✗ Not compliant for legal or regulatory purposes
Warning: Many PDF editors only add black boxes over text without actually removing it. This is dangerous for sensitive documents — the original text can still be copied, searched, or revealed. PDFNinja rasterizes each page after applying redactions, so nothing underneath survives.
How to Redact PDF Documents
Upload your PDF
Click the upload area or drag and drop the PDF file containing sensitive information you need to redact. Your document stays on your device throughout.
Select areas to redact
Use your mouse or finger to drag and select rectangular areas over text, images, or data you want to permanently remove.
Redact multiple pages
Navigate through all pages using the page controls. Add redactions to any pages that contain sensitive information before applying.
Apply and download
Click 'Apply Redactions' to permanently remove all marked content. The redacted information is completely deleted. Download your secure PDF immediately.
When to Redact PDF Documents
Personal Information
Remove Social Security numbers, passport numbers, credit card details, birth dates, addresses, phone numbers, and email addresses before sharing documents.
Legal Documents
Redact witness names, minors' identities, sealed information, trade secrets, or privileged attorney-client communications in court filings.
Medical Records (HIPAA)
Remove patient names, medical record numbers, diagnosis codes, and protected health information (PHI) from medical documents before sharing.
Financial Information
Black out bank account numbers, salary details, financial statements, tax information, or proprietary business data in contracts and reports.
Government Documents
Comply with FOIA requests by redacting classified information, national security data, or personal privacy details from official documents.
Corporate Documents
Remove confidential business strategies, employee information, merger details, or proprietary technology from externally shared documents.
Frequently Asked Questions
Is the redaction truly permanent?
Yes. Text under your marks is removed from the PDF's content stream in place and replaced with solid black, so nothing remains to copy or OCR. For pages with complex layouts (scanned images, embedded forms) the whole page is rasterized to an image. Either way the original content no longer exists in the output file.
Do my files get uploaded anywhere?
No. Everything runs in your browser using WebAssembly and JavaScript. Your PDF never leaves your device.
Can redacted text be recovered by copy-paste or OCR bypass?
No — the underlying text objects are physically removed from the file. There is nothing to copy, and the redacted areas are solid black pixels.
Is this GDPR / HIPAA compliant?
The tool applies true redaction that satisfies the technical requirement for permanent removal. Compliance also depends on your process — always keep an unredacted original in a secure location.
Will the output PDF be larger?
Sometimes — since pages become high-resolution images. The trade-off is guaranteed security. Run our Compress PDF tool afterward if you need a smaller file.