(PowerShell) PDF List Unsigned Signature Fields

See more PDF Signatures Examples

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

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Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

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

$pdf = New-Object Chilkat.Pdf

# Load a PDF containing 2 remaining unsigned signature fields:
$success = $pdf.LoadFile("qa_data/pdf/doctor_patient_parent.pdf")
if ($success -eq $false) {
    $($pdf.LastErrorText)
    exit
}

# Note: This example requires Chilkat v9.5.0.90 or greater.
$json = New-Object Chilkat.JsonObject
$pdf.GetUnsignedSigFields($json)

$json.EmitCompact = $false
$($json.Emit())

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

# To iterate over the field names:

$i = 0
$count_i = $json.SizeOfArray("unsignedSigField")
while ($i -lt $count_i) {
    $json.I = $i
    $strVal = $json.StringOf("unsignedSigField[i]")
    $($strVal)
    $i = $i + 1
}