Can redacted text be recovered?

No. Affected pages are fully rasterized — the underlying text data is permanently destroyed, unlike a simple black overlay.

What does 'rasterized' mean?

The page is converted to a bitmap image at that step. Text on redacted pages becomes non-selectable in the output.

Should I verify the output?

Always. Open the downloaded PDF and search for redacted terms to confirm they cannot be found before sharing.

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annotate / Censurar

Censurar

Tachar contenido y eliminar el texto subyacente.

La censura es irreversible. Verifique buscando los términos censurados en el resultado antes de compartir.

Añade al menos un PDF en la bandeja para empezar.

Explorar más herramientas

Metodología y Transparencia Técnica

Bibliotecas utilizadas

pdf-lib — Lógica principal de construcción y edición de PDF
pdf.js — Renderizado de PDF y rasterización de páginas

Estrategia de memoria

Tras cada operación, se llama a URL.revokeObjectURL() inmediatamente. Todos los handles de documentos pdf.js se destruyen mediante pdfDoc.destroy(). Los workers se terminan al completar el procesamiento o al desmontar el componente.

No garantizamos el almacenamiento permanente de archivos (ya que no los almacenamos). El procesamiento local de PDFs protegidos con contraseña no está soportado.

Key Features

Draw redaction zones
Click and drag directly on the rendered page to place precise black rectangles over sensitive content.
Irreversible pixel destruction
Redacted areas are rasterized — the original text data is completely removed from the PDF, not just hidden.
Multi-page support
Navigate between pages and add redaction boxes on any page before applying in a single pass.

Common Use Cases

Essential for legal filings that require hiding personal identifiers (SSN, date of birth), sharing medical records with third parties, or preparing court documents under FOIA or GDPR obligations.

Frequently Asked Questions

Can redacted text be recovered?: No. Affected pages are fully rasterized — the underlying text data is permanently destroyed, unlike a simple black overlay.
What does 'rasterized' mean?: The page is converted to a bitmap image at that step. Text on redacted pages becomes non-selectable in the output.
Should I verify the output?: Always. Open the downloaded PDF and search for redacted terms to confirm they cannot be found before sharing.