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(PowerBuilder) Add a Document Timestamp Signature to an already-signed PDF

See more PDF Signatures Examples

Demonstrates how to add a document timestamp signature to an already-signed PDF.

Note: This example requires Chilkat v9.5.0.99 or greater.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_Pdf
integer li_Success
oleobject loo_Json

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

loo_Pdf = create oleobject
// Use "Chilkat_9_5_0.Pdf" for versions of Chilkat < 10.0.0
li_rc = loo_Pdf.ConnectToNewObject("Chilkat.Pdf")
if li_rc < 0 then
    destroy loo_Pdf
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// Load the PDF that has already been signed.
li_Success = loo_Pdf.LoadFile("qa_data/pdf/helloWorld_signed.pdf")
if li_Success = 0 then
    Write-Debug loo_Pdf.LastErrorText
    destroy loo_Pdf
    return
end if

loo_Json = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

loo_Json.UpdateBool("invisibleSignature",1)
loo_Json.UpdateString("subFilter","/ETSI.RFC3161")

loo_Json.UpdateBool("timestampToken.enabled",1)

// In this example, we'll use a free TSA server (timestamp.digicert.com), but you may want to use your own timestamp authority server.
loo_Json.UpdateString("timestampToken.tsaUrl","http://timestamp.digicert.com")

// If the timestamp server requires a username/password, do the following.  Otherwise omit the following few lines of code.
loo_Json.UpdateString("timestampToken.tsaUsername","the_tsa_username")
loo_Json.UpdateString("timestampToken.tsaPassword","the_tsa_password")

// When requesting the timestamp token, ask the server to include its certificate in the timestamp token response.
// This allows for the timestamp server's certificate to be included in the LTV validation (i.e. if the timestamp server
// has an OCSP URL, then Chilkat will also do the OCSP request for the timestamp server's certificate.)
loo_Json.UpdateBool("timestampToken.requestTsaCert",1)

li_Success = loo_Pdf.SignPdf(loo_Json,"c:/temp/qa_output/helloWorld_signed_2.pdf")
if li_Success = 0 then
    Write-Debug loo_Pdf.LastErrorText
    destroy loo_Pdf
    destroy loo_Json
    return
end if

Write-Debug "Successfully added a Document Timestamp Signature to the PDF"


destroy loo_Pdf
destroy loo_Json

 

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