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(VB.NET UWP/WinRT) PDF Sign Under Existing SignatureSee more PDF Signatures ExamplesThis example explains how sign a previously-signed PDF and place the signature appearance below the existing signature. Note: This example requires Chilkat v9.5.0.85 or greater.
' This example requires the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. Dim pdf As New Chilkat.Pdf ' Load a PDF to be signed. Dim success As Boolean = pdf.LoadFile("qa_data/pdf/sign_testing_4/hello_signed.pdf") If (success = False) Then Debug.WriteLine(pdf.LastErrorText) Exit Sub End If ' The PDF we'll be signing already has a signature added in Adobe Acrobat DC. ' It looks like this: ' (Notice the Adobe background logo, which is commonly what you'll see when a signature ' is created by Adobe Acrobat. Chilkat (obviously) does not create signatures using the Adobe ' logo because it would be a copyright violation.) |
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