Can I un-flatten a document?

No. Flattening is irreversible. Keep a copy of the interactive version before applying.

What is the difference between saving and flattening?

Saving preserves interactive fields. Flattening destroys them — the result is a static image of the form, not an editable form.

Are digital signatures affected?

Yes. Flattening renders signature appearance into pixels, which invalidates the cryptographic signature. Apply only to forms where the signature appearance no longer needs to be verified.

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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

Burn interactive fields to static content
Form fields, checkboxes, and text inputs are rendered into the page as permanent visual elements.
Annotations and layers
All PDF annotations (comments, stamps, ink) and optional content layers are merged into the base page.
Print and archive ready
The flattened PDF renders identically in every viewer and prints consistently — no renderer variations.

Common Use Cases

Used to finalise filled application forms before submission, create print-ready files from form-based designs, or archive completed contracts that must not be altered.

Frequently Asked Questions

Can I un-flatten a document?: No. Flattening is irreversible. Keep a copy of the interactive version before applying.
What is the difference between saving and flattening?: Saving preserves interactive fields. Flattening destroys them — the result is a static image of the form, not an editable form.
Are digital signatures affected?: Yes. Flattening renders signature appearance into pixels, which invalidates the cryptographic signature. Apply only to forms where the signature appearance no longer needs to be verified.