I am using the adobe echosign api to upload and send a document through my application. This is working fine however, some of the pdf's I am uploading have the required signature in the wrong spot. Normally this gets automatically generated at the bottom of the last page of the document however with some of the documents it goes at the top of the 2nd page instead of the end. Do you know why this is happening? Or if there is anyway I can position this signature on the bottom of the second page via the API?