Document partially signed

[bernardodesousa]

Hi! I signed an existing pdf with the following code:

import fs from 'fs';
import { SignPdf, plainAddPlaceholder } from 'node-signpdf';

const signer = new SignPdf()

const p12Buffer = fs.readFileSync("./cert.p12");
let pdfBuffer = fs.readFileSync("./original.pdf");
let pdfWithPlaceHolderBuffer = plainAddPlaceholder({
    pdfBuffer,
    reason: 'Some reason',
    location: 'Some City',
    signatureLength: 15708,
});

let signedPdfBuffer = signer.sign(pdfWithPlaceHolderBuffer, p12Buffer, {
    passphrase: process.env.CERTIFICATE_PASSPHRASE,
});

fs.createWriteStream("./signed.pdf").write(signedPdfBuffer);

Adobe Acrobat says the signature is not valid and that the certificate has "invalid policy constraint":

LibreOffice Draw, however, says the document is only partially signed and that the certificate is good:

When I use Acrobat to sign the same document with the same certificate (although from the Windows Certificate Store, not from a p12 file), the signature is considered valid by LibreOffice:

I don't have a lot of experience signing pdf files with x.509 certificates, so this is all very confusing to me. I don't know how to interpret these errors. Any help is appreciated!

[hermesalvesbr]

I tried your code, but show me this error:

SignPdfError: Expected xref at NaN but found other content.
    at getXref (/home/hermes/Projetos/pdf/pdf_sign/node_modules/node-signpdf/dist/helpers/plainAddPlaceholder/readRefTable.js:36:13)
    at getFullXrefTable (/home/hermes/Projetos/pdf/pdf_sign/node_modules/node-signpdf/dist/helpers/plainAddPlaceholder/readRefTable.js:88:25)
    at readRefTable (/home/hermes/Projetos/pdf/pdf_sign/node_modules/node-signpdf/dist/helpers/plainAddPlaceholder/readRefTable.js:108:25)
    at readPdf (/home/hermes/Projetos/pdf/pdf_sign/node_modules/node-signpdf/dist/helpers/plainAddPlaceholder/readPdf.js:47:46)
    at plainAddPlaceholder (/home/hermes/Projetos/pdf/pdf_sign/node_modules/node-signpdf/dist/helpers/plainAddPlaceholder/index.js:58:37)
    at Object.<anonymous> (/home/hermes/Projetos/pdf/pdf_sign/dist/pfx.js:15:69)
    at Module._compile (node:internal/modules/cjs/loader:1105:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1159:10)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12) {
  type: 3
}
error Command failed with exit code 1.

Você é Brasileiro?

[bernardodesousa]

Sim, eu sou brasileiro. Você tá com o certificado e o pdf original no mesmo diretório do script? Os nomes são cert.p12 e original.pdf?

[hermesalvesbr]

Sim, eu sou brasileiro. Você tá com o certificado e o pdf original no mesmo diretório do script? Os nomes são cert.p12 e original.pdf?

Sim, os arquivos são encontrados.

Topa um freela? https://www.99freelas.com.br/project/assinar-pdf-com-node-signpdf-em-vue3-compostion-api-365076

[bernardodesousa]

Sim, eu sou brasileiro. Você tá com o certificado e o pdf original no mesmo diretório do script? Os nomes são cert.p12 e original.pdf?

Sim, os arquivos são encontrados.

Topa um freela? https://www.99freelas.com.br/project/assinar-pdf-com-node-signpdf-em-vue3-compostion-api-365076

Não, obrigado. Brother, não vou poder te ajudar. Boa sorte!

[stale[bot]]

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