PowerBuilder

PDF List Unsigned Signature Fields

See more PDF Signatures Examples

Demonstrates how to list the unsigned signature fields in a PDF.

Note: This example requires Chilkat v9.5.0.90 or greater.

PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Pdf
oleobject loo_Json
string ls_StrVal
integer i
integer li_Count_i

li_Success = 0

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

loo_Pdf = create oleobject
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 a PDF containing 2 remaining unsigned signature fields:
li_Success = loo_Pdf.LoadFile("qa_data/pdf/doctor_patient_parent.pdf")
if li_Success = 0 then
    Write-Debug loo_Pdf.LastErrorText
    destroy loo_Pdf
    return
end if

// Note: This example requires Chilkat v9.5.0.90 or greater.
loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

loo_Pdf.GetUnsignedSigFields(loo_Json)

loo_Json.EmitCompact = 0
Write-Debug loo_Json.Emit()

// Result:
// {
//   "unsignedSigField": [
//     "doctor_signature",
//     "parent_signature"
//   ]
// }

// To iterate over the field names:

i = 0
li_Count_i = loo_Json.SizeOfArray("unsignedSigField")
do while i < li_Count_i
    loo_Json.I = i
    ls_StrVal = loo_Json.StringOf("unsignedSigField[i]")
    Write-Debug ls_StrVal
    i = i + 1
loop


destroy loo_Pdf
destroy loo_Json