Delphi ActiveX
Sign PDF for ICP-Brasil

Sign a PDF to create a signed PDF compliant with the ICP-Brasil Digital Signature Standard Conformity Checker. (Verificador de Conformidade do Padrão de Assinatura Digital ICP-Brasil)
Chilkat Delphi ActiveX Downloads

Download Chilkat for Delphi ActiveX
Delphi ActiveX
uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
pdf: TChilkatPdf;
json: TChilkatJsonObject;
cert: TChilkatCert;

begin
success := 0;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// The signed PDF produced by this example should be verifiable at https://validar.iti.gov.br/
pdf := TChilkatPdf.Create(Self);

// Load a PDF to be signed.
// The "hello.pdf" is available at https://chilkatsoft.com/hello.pdf
success := pdf.LoadFile('qa_data/pdf/hello.pdf');
if (success = 0) then
  begin
    Memo1.Lines.Add(pdf.LastErrorText);
    Exit;
  end;

json := TChilkatJsonObject.Create(Self);

// Define the appearance and location of the signature.
json.UpdateInt('page',1);
json.UpdateString('appearance.y','bottom');
json.UpdateString('appearance.x','middle');
json.UpdateString('appearance.fontScale','9.0');
json.UpdateString('appearance.text[0]','Digitally signed by: cert_cn');
json.UpdateString('appearance.text[1]','current_dt');
json.UpdateString('appearance.image','document-accepted');
json.UpdateString('appearance.imagePlacement','left');
json.UpdateString('appearance.imageOpacity','100');

// Add the CMS options required for ICP-Brasil
json.UpdateInt('contentType',1);
json.UpdateInt('messageDigest',1);
json.UpdateInt('signingCertificateV2',1);
json.UpdateBool('ltvOcsp',1);

// Listed here are the currently existing profiles. (Chilkat will add additional ICP Brasil policy profiles in future versions as new ones are created.)
// See https://www.gov.br/iti/pt-br/assuntos/repositorio/artefatos-de-assinatura-digital for more information.
// 
// PA_AD_RA_v1_1 --> 2.16.76.1.7.1.5.1.1
// PA_AD_RA_v1_2 --> 2.16.76.1.7.1.5.1.2
// PA_AD_RA_v2_0 --> 2.16.76.1.7.1.5.2
// PA_AD_RA_v2_1 --> 2.16.76.1.7.1.5.2.1
// PA_AD_RA_v2_2 --> 2.16.76.1.7.1.5.2.2
// PA_AD_RA_v2_3 --> 2.16.76.1.7.1.5.2.3
// PA_AD_RA_v2_4 --> 2.16.76.1.7.1.5.2.4

// PA_AD_RB_v1_1 --> 2.16.76.1.7.1.1.1.1
// PA_AD_RB_v2_0 --> 2.16.76.1.7.1.1.2
// PA_AD_RB_v2_1 --> 2.16.76.1.7.1.1.2.1
// PA_AD_RB_v2_2 --> 2.16.76.1.7.1.1.2.2
// PA_AD_RB_v2_3 --> 2.16.76.1.7.1.1.2.3

// PA_AD_RC_v1_1 --> 2.16.76.1.7.1.4.1.1
// PA_AD_RC_v2_0 --> 2.16.76.1.7.1.4.2
// PA_AD_RC_v2_1 --> 2.16.76.1.7.1.4.2.1
// PA_AD_RC_v2_2 --> 2.16.76.1.7.1.4.2.2
// PA_AD_RC_v2_3 --> 2.16.76.1.7.1.4.2.3

// PA_AD_RT_v1_1 --> 2.16.76.1.7.1.2.1.1
// PA_AD_RT_v2_0 --> 2.16.76.1.7.1.2.2
// PA_AD_RT_v2_1 --> 2.16.76.1.7.1.2.2.1
// PA_AD_RT_v2_2 --> 2.16.76.1.7.1.2.2.2
// PA_AD_RT_v2_3 --> 2.16.76.1.7.1.2.2.3

// PA_AD_RV_v1_1 --> 2.16.76.1.7.1.3.1.1
// PA_AD_RV_v2_0 --> 2.16.76.1.7.1.3.2
// PA_AD_RV_v2_1 --> 2.16.76.1.7.1.3.2.1
// PA_AD_RV_v2_2 --> 2.16.76.1.7.1.3.2.2
// PA_AD_RV_v2_3 --> 2.16.76.1.7.1.3.2.3

// PA_PAdES_AD_RA_v1_0 --> 2.16.76.1.7.1.14.1
// PA_PAdES_AD_RA_v1_1 --> 2.16.76.1.7.1.14.1.1
// PA_PAdES_AD_RA_v1_2 --> 2.16.76.1.7.1.14.1.2
// PA_PAdES_AD_RB_v1_0 --> 2.16.76.1.7.1.11.1
// PA_PAdES_AD_RB_v1_1 --> 2.16.76.1.7.1.11.1.1
// PA_PAdES_AD_RC_v1_0 --> 2.16.76.1.7.1.13.1
// PA_PAdES_AD_RC_v1_1 --> 2.16.76.1.7.1.13.1.1
// PA_PAdES_AD_RC_v1_2 --> 2.16.76.1.7.1.13.1.2
// PA_PAdES_AD_RT_v1_0 --> 2.16.76.1.7.1.12.1
// PA_PAdES_AD_RT_v1_1 --> 2.16.76.1.7.1.12.1.1

// Set the policy profile name
// ---------------------------------------------------
// Note: On 24-May-2024, I was informed that adding the "policyId.profile"
// causes the PDF signature to fail validation at https://validar.iti.gov.br/
// Perhaps something changed in the years since this example was originally written and tested to be working.
// You may need to omit the "policyId.profile".
// ---------------------------------------------------
json.UpdateString('policyId.profile','PA_PAdES_AD_RB_v1_1');

// Load the signing certificate. (Use your own certificate.)
// Note: If loading from a smart card, call LoadFromSmartcard instead, and make sure to use Chilkat v9.5.0.88 or later.
cert := TChilkatCert.Create(Self);
success := cert.LoadPfxFile('qa_data/pfx/myPdfSigningCert.pfx','pfx_password');
if (success = 0) then
  begin
    Memo1.Lines.Add(cert.LastErrorText);
    Exit;
  end;

// Tell the pdf object to use the certificate for signing.
success := pdf.SetSigningCert(cert.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(pdf.LastErrorText);
    Exit;
  end;

success := pdf.SignPdf(json.ControlInterface,'qa_output/hello_signed.pdf');
if (success = 0) then
  begin
    Memo1.Lines.Add(pdf.LastErrorText);
    Exit;
  end;

Memo1.Lines.Add('The PDF has been successfully cryptographically signed.');
end;