How to Collect Electronic Signatures with Brazilian Certificates in PDFs
Question details
The user needs to collect and verify electronic signatures from multiple recipients using Brazilian government certificates or physical signature workflows.
- Product
- Device & OS
- not provided
- Scenario
- Distributing PDF documents that require legally binding digital signatures using specific Brazilian government certificates.
- Observed behavior
- Seeking a reliable workflow for recipients to successfully apply their Brazilian digital certificates or physical signatures, and a method to verify the completed document.
Ensure that all your recipients have active access to their valid Brazilian government digital certificates (such as e-CPF or e-CNPJ) and a compatible PDF reader installed before distributing the document.
Use Certificate-Based Digital Signatures
The most secure and legally binding method for collecting signatures using Brazilian digital certificates.
This workflow relies on recipients possessing a cryptographic token or smart card provided by the Brazilian public key infrastructure (ICP-Brasil).
Send the PDF file to your recipients via email or a secure document sharing platform, and instruct them to use the 'Digital Signatures' or 'Certificates' tool in their PDF software.
Have the recipients select their Brazilian government certificate (e-CPF/e-CNPJ) from their system's certificate store to digitally sign the designated signature fields.
Once the document is returned to you, use the Brazilian government's online validation service (ITI) or check the signature panel in your PDF viewer to confirm the certificate's authenticity and ensure the document has not been altered.
Use a Hybrid Physical Signature Workflow
An alternative fallback if recipients do not possess a digital certificate but you still require a signed document.
Easily Manage PDF Signatures with WPS Office
WPS Office provides a comprehensive suite of PDF tools, allowing you to easily view, manage, and add electronic signatures to your PDF documents. It supports high compatibility with standard PDF workflows, making document distribution and signature collection seamless.
- 1. Open the PDF: Launch WPS Office and open your PDF document that requires signing.
- 2. Access the Signature Tool: Navigate to the 'Protect' or 'Insert' tab on the top ribbon and click on 'Sign'.
- 3. Create or Apply Signature: Draw, type, or upload an image of your signature. If managing digital certificates, use the 'Digital Signature' feature.
- 4. Place and Save: Drag the signature to the correct field, adjust the size, and save the document to lock the signature.
Frequently Asked Questions
What is a Brazilian digital certificate (e-CPF/e-CNPJ)?
It is an electronic identity document regulated by the Brazilian government (ICP-Brasil) that allows individuals and companies to digitally sign documents with full legal validity, ensuring authenticity and integrity.
How do I verify a Brazilian digital signature on a PDF?
You can verify it by uploading the signed PDF to the Brazilian government's official ITI validation portal, or by checking the certificate details in the signature panel of a standard PDF reader.
Can I use a tablet to collect signatures if a user doesn't have a certificate?
Yes, recipients can use a tablet-based workflow to draw their physical signature on the document. However, this acts as a standard electronic signature rather than a cryptographically secure digital certificate.
Why is my recipient's digital certificate showing as invalid in the PDF reader?
This usually happens if the root certificate from the Brazilian government (ICP-Brasil) is not trusted by the PDF reader by default. The reader's trust settings must be updated to include ICP-Brasil root certificates to resolve the warning.
