(PHP ActiveX) PDF List Unsigned Signature Fields
Demonstrates how to list the unsigned signature fields in a PDF.
Note: This example requires Chilkat v9.5.0.90 or greater.
<?php
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
$pdf = new COM("Chilkat_9_5_0.Pdf");
// Load a PDF containing 2 remaining unsigned signature fields:
$success = $pdf->LoadFile('qa_data/pdf/doctor_patient_parent.pdf');
if ($success == 0) {
print $pdf->LastErrorText . "\n";
exit;
}
// Note: This example requires Chilkat v9.5.0.90 or greater.
$json = new COM("Chilkat_9_5_0.JsonObject");
$pdf->GetUnsignedSigFields($json);
$json->EmitCompact = 0;
print $json->emit() . "\n";
// Result:
// {
// "unsignedSigField": [
// "doctor_signature",
// "parent_signature"
// ]
// }
// To iterate over the field names:
$i = 0;
$count_i = $json->SizeOfArray('unsignedSigField');
while ($i < $count_i) {
$json->I = $i;
$strVal = $json->stringOf('unsignedSigField[i]');
print $strVal . "\n";
$i = $i + 1;
}
?>
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