Assinatura Digital
Adicione assinaturas digitais X.509 a documentos PDF. Assine PDFs com certificados PFX, P12 ou PEM para validade legal.
Clear file handling
Built for real workflows
Progress and feedback
Useful options, not clutter
Upload PDF to Sign
Drag and drop a PDF file here, or click to browse.
Smart workflow
Do more in the same workflow
Build from the job you started: batch compatible files, keep the right output format, then move straight into the next useful step without hunting through the site.
Input
Output
Batch
1 file per run
1 file per run. Use one run when the files share the same task.
Choose a related operation below instead of starting from scratch.
Results stay focused on download, preview and the next useful action.
No fixed file-size limit per configured tool limit.
Natural next steps
Continue with a related tool using the same file workflow.
Smart workflows
Finish the job, not just the file
Use the existing tool graph to continue into useful next steps. Bulk and output-packaging capabilities are surfaced automatically where the underlying tool supports them.
Continue with Validate Signature
Bulk-readyFinish the job after Digital Sign Pdf with a relevant MAXScanner tool, without creating a duplicate converter page.
- Digital Sign Pdf
- Validate SignatureBulk processing · ZIP-ready output · Workflow-ready
Best when Digital Sign Pdf is only the first step in your workflow.
ContinueContinue with Encrypt Pdf
Finish the job after Digital Sign Pdf with a relevant MAXScanner tool, without creating a duplicate converter page.
- Digital Sign Pdf
- Encrypt PdfWorkflow-ready
Best when Digital Sign Pdf is only the first step in your workflow.
ContinueMake the next step easier
Use Digital Sign Pdf as part of a complete document workflow: process the file, review the result, then continue into the next useful step instead of returning to a generic tools catalogue.
Clear file-to-result workflow
Useful controls without unnecessary clutter
Mobile-friendly processing experience
Continue directly into related tools
A smoother workflow
- 1Add the file for Digital Sign Pdf
- 2Choose only the settings that matter for the destination
- 3Process and review the result
- 4Continue to the next useful tool when the job is not finished
A human tip
The useful version of Digital Sign Pdf
A conversion tool is most valuable when it removes the work around the conversion. People usually arrive with a destination in mind—an upload, a submission, an email, a report, a website or another editing step. The page should make that destination obvious, keep the interface focused, and offer a sensible next action when the first operation is only part of the job.
About This Tool
A ferramenta de Assinatura Digital permite adicionar assinaturas digitais X.509 criptográficas a documentos PDF.
How to Use
Enviar PDF
Envie o documento PDF que deseja assinar digitalmente.
Carregar Certificado
Envie seu arquivo de certificado X.509 (.pfx, .p12 ou .pem) e digite a senha.
Assinar e Baixar
Clique em Assinar PDF para aplicar a assinatura digital e baixe o documento assinado.
Use Cases
Documentos Legais
Assine contratos e documentos legais com assinaturas digitais juridicamente vinculativas.
Aprovações Empresariais
Assine digitalmente faturas e documentos de aprovação para trilhas de auditoria.
Integridade do Documento
Garanta que os documentos não foram alterados após a assinatura.
Frequently Asked Questions
Quais formatos de certificado são suportados?+
Os formatos de certificado PFX (.pfx), PKCS#12 (.p12) e PEM (.pem) são suportados.
A assinatura é legalmente válida?+
Sim, assinaturas digitais X.509 com um certificado válido são legalmente reconhecidas na maioria das jurisdições.
Posso adicionar uma assinatura visível?+
Sim, você pode adicionar uma assinatura visível com texto, imagem, posição e estilo personalizados.