PureBasic
PureBasic
Sign PDF for ICP-Brasil
See more PDF Signatures Examples
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 PureBasic Downloads
IncludeFile "CkCert.pb"
IncludeFile "CkJsonObject.pb"
IncludeFile "CkPdf.pb"
Procedure ChilkatExample()
success.i = 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.i = CkPdf::ckCreate()
If pdf.i = 0
Debug "Failed to create object."
ProcedureReturn
EndIf
; Load a PDF to be signed.
; The "hello.pdf" is available at https://chilkatsoft.com/hello.pdf
success = CkPdf::ckLoadFile(pdf,"qa_data/pdf/hello.pdf")
If success = 0
Debug CkPdf::ckLastErrorText(pdf)
CkPdf::ckDispose(pdf)
ProcedureReturn
EndIf
json.i = CkJsonObject::ckCreate()
If json.i = 0
Debug "Failed to create object."
ProcedureReturn
EndIf
; Define the appearance and location of the signature.
CkJsonObject::ckUpdateInt(json,"page",1)
CkJsonObject::ckUpdateString(json,"appearance.y","bottom")
CkJsonObject::ckUpdateString(json,"appearance.x","middle")
CkJsonObject::ckUpdateString(json,"appearance.fontScale","9.0")
CkJsonObject::ckUpdateString(json,"appearance.text[0]","Digitally signed by: cert_cn")
CkJsonObject::ckUpdateString(json,"appearance.text[1]","current_dt")
CkJsonObject::ckUpdateString(json,"appearance.image","document-accepted")
CkJsonObject::ckUpdateString(json,"appearance.imagePlacement","left")
CkJsonObject::ckUpdateString(json,"appearance.imageOpacity","100")
; Add the CMS options required for ICP-Brasil
CkJsonObject::ckUpdateInt(json,"contentType",1)
CkJsonObject::ckUpdateInt(json,"messageDigest",1)
CkJsonObject::ckUpdateInt(json,"signingCertificateV2",1)
CkJsonObject::ckUpdateBool(json,"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".
; ---------------------------------------------------
CkJsonObject::ckUpdateString(json,"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.i = CkCert::ckCreate()
If cert.i = 0
Debug "Failed to create object."
ProcedureReturn
EndIf
success = CkCert::ckLoadPfxFile(cert,"qa_data/pfx/myPdfSigningCert.pfx","pfx_password")
If success = 0
Debug CkCert::ckLastErrorText(cert)
CkPdf::ckDispose(pdf)
CkJsonObject::ckDispose(json)
CkCert::ckDispose(cert)
ProcedureReturn
EndIf
; Tell the pdf object to use the certificate for signing.
success = CkPdf::ckSetSigningCert(pdf,cert)
If success = 0
Debug CkPdf::ckLastErrorText(pdf)
CkPdf::ckDispose(pdf)
CkJsonObject::ckDispose(json)
CkCert::ckDispose(cert)
ProcedureReturn
EndIf
success = CkPdf::ckSignPdf(pdf,json,"qa_output/hello_signed.pdf")
If success = 0
Debug CkPdf::ckLastErrorText(pdf)
CkPdf::ckDispose(pdf)
CkJsonObject::ckDispose(json)
CkCert::ckDispose(cert)
ProcedureReturn
EndIf
Debug "The PDF has been successfully cryptographically signed."
CkPdf::ckDispose(pdf)
CkJsonObject::ckDispose(json)
CkCert::ckDispose(cert)
ProcedureReturn
EndProcedure