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 / Tarjar

Tarjar

Cobrir conteúdo e remover o texto subjacente.

Tarjar é irreversível. Verifique procurando os termos tarjados no resultado antes de compartilhar.

Adicione pelo menos um PDF na bandeja para começar.

Explorar mais ferramentas

Metodologia e Transparência Técnica

Bibliotecas utilizadas

pdf-lib — Lógica principal de construção e edição de PDF
pdf.js — Renderização de PDF e rasterização de páginas

Estratégia de memória

Após cada operação, URL.revokeObjectURL() é chamado imediatamente. Todos os handles de documentos pdf.js são destruídos via pdfDoc.destroy(). Os workers são encerrados na conclusão ou desmontagem do componente.

Não garantimos o armazenamento permanente de arquivos (pois não os armazenamos). O processamento local de PDFs protegidos por senha não é suportado.

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.