PDF Placeholders with Other Delimiters: [[name]]

Dim success As Boolean = False

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

'  The PDF used in this example is available at letter_template.pdf

Dim pdf As New Chilkat.Pdf
success = pdf.LoadFile("qa_data/pdf/letter_template.pdf")
If (success = False) Then
    Debug.WriteLine(pdf.LastErrorText)
    Exit Sub
End If


'  The letter reads: "Dear [[name]]," ... "expires on [[expiry]]" ... "[[amount]] per year" ... "[[agent]]".
Dim json As New Chilkat.JsonObject
json.UpdateString("placeholderSyntax","[[name]]")
json.UpdateString("placeholders.date","October 18, 2026")
json.UpdateString("placeholders.name","Ms. Rivera")
json.UpdateString("placeholders.expiry","December 31, 2026")
json.UpdateString("placeholders.amount","$299.00")
json.UpdateString("placeholders.agent","Dana Whitfield, Account Manager")

Dim jsonOut As New Chilkat.JsonObject
success = pdf.TextReplace("apply",json,jsonOut)
If (success = False) Then
    Debug.WriteLine("Not applied: " & jsonOut.Emit())
    If (success = False) Then
        Debug.WriteLine(pdf.LastErrorText)
        Exit Sub
    End If

End If


Dim i As Integer = 0
Dim count_i As Integer = jsonOut.SizeOfArray("replacements")
While i < count_i
    jsonOut.I = i
    Debug.WriteLine("[[" & jsonOut.StringOf("replacements[i].field") & "]] replaced")
    i = i + 1
End While

success = pdf.WriteFile("qa_output/letter_rivera.pdf")
If (success = False) Then
    Debug.WriteLine(pdf.LastErrorText)
    Exit Sub
End If


'  Sample output:

'  [[date]] replaced
'  [[name]] replaced
'  [[expiry]] replaced
'  [[amount]] replaced
'  [[agent]] replaced