Nexinon

Authenticity

Confirm the authenticity of documents and certificates — bank slips, PDF signatures, e-invoices and digital certificates.

Boleto Verifier
Authenticity

Decodes a boleto's digitable line or PDF and checks its verification digits.

PDF Signature Verifier
Authenticity

Checks a PDF's PAdES/ICP-Brasil signature — who signed, when, and whether the chain is trustworthy.

Authenticity Seal
Authenticity

Proves a PDF is the original, unaltered file, with a Nexinon HMAC signature.

NF-e Access Key
Authenticity

Decodes a Brazilian NF-e access key and checks its check digit.

Digital Certificate
Authenticity

Read a .pfx/.p12 certificate's data — validity, CPF/CNPJ, issuer — without leaving your browser.