Hi, I am using Aspose PDF dll to flatten my fillable pdf’s and its not working. My actual requirement is to concatenate two pdf’s. When i am trying to concatenate a fillable pdf with normal pdf it is not concatenating…...PdfFileEditor editor = new PdfFileEditor(); editor.CopyLogicalStructure...CopyLogicalStructure = true; bool success = editor.Concatenate(fs1, fs2, fileOutputStreamOut);...