title: How to Identify Signed Signature Field In PDF using VB.Net
body: <p>Hi I'm looking for a way to locate signature field on PDF using VB.Net Or JavaScript and Acrobat and then I want to check if it is signed or not. Here is what I have so far:</p>
  
  <pre><code>        Dim page As Acrobat.CAcroPDPage
          Dim annot As Acrobat.CAcroPDAnnot
          page = acroPDDoc.AcquirePage(0)
          For i = 0 To page.GetNumAnnots - 1
              annot = page.GetAnnot(i)
          Next
  </code></pre>
  
  <p>Im finding the annotations but I dont know how to check if it is signature field or not. Thanks</p>