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(Unicode C++) Sign a PDF using IDPrime MD T=1 SmartCardSee more PDF Signatures ExamplesThis example demonstrates how to a sign a PDF using a IDPrime MD T=1 smart card, which requires more specific PIN roles.
#include <CkPdfW.h> #include <CkJsonObjectW.h> #include <CkCertW.h> void ChilkatSample(void) { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkPdfW pdf; // Load a PDF to be signed. // The "hello.pdf" is available at https://chilkatsoft.com/hello.pdf bool success = pdf.LoadFile(L"qa_data/pdf/hello.pdf"); if (success == false) { wprintf(L"%s\n",pdf.lastErrorText()); return; } // Options for signing are specified in JSON. CkJsonObjectW json; // In most cases, the signingCertificateV2 and signingTime attributes are required. json.UpdateInt(L"signingCertificateV2",1); json.UpdateInt(L"signingTime",1); // Put the signature on page 1, top left json.UpdateInt(L"page",1); json.UpdateString(L"appearance.y",L"top"); json.UpdateString(L"appearance.x",L"left"); // Use a font scale of 10.0 json.UpdateString(L"appearance.fontScale",L"10.0"); // In this example, the appearance of the digital signature will contain three lines: // 1) The signing certificate's common name // 2) The current date/time // 3) Some arbitrary text. // The keyword "cert_cn" is replaced with the Certificate's Subject Common Name. // The keyword "current_dt" is replaced with the current date/time. // Any number of appearance text lines can be added. json.UpdateString(L"appearance.text[0]",L"Digitally signed by: cert_cn"); json.UpdateString(L"appearance.text[1]",L"current_dt"); json.UpdateString(L"appearance.text[2]",L"The crazy brown fox jumps over the lazy dog."); CkCertW cert; // Provide the smart card PIN's for both the "user" and the signing PIN, which is role "3". // These PINs may be the same. // If the PIN is not explicitly provided here, the Windows OS should // display a dialog for the PIN. cert.put_SmartCardPin(L"{ \"user\":\"0000\", \"3\":\"12345678\" }"); // Use a certificate on an IDPrime MD T=1 smart card. success = cert.LoadFromSmartcard(L""); if (success == false) { wprintf(L"%s\n",cert.lastErrorText()); return; } // Tell the pdf object to use the certificate for signing. success = pdf.SetSigningCert(cert); if (success == false) { wprintf(L"%s\n",pdf.lastErrorText()); return; } success = pdf.SignPdf(json,L"qa_output/hello_signed_hsm.pdf"); if (success == false) { wprintf(L"%s\n",pdf.lastErrorText()); return; } wprintf(L"The PDF has been successfully cryptographically signed using an HSM.\n"); } |
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