Why is .pfx file mandatory while e sign? I am trying to use https://github.com/aspose-Pdf-cloud/aspose-Pdf-cloud-node.js/blob/master/test/testFields.ts#L307 to understand how e sign can be implemen......com/aspose-pdf-cloud/aspose-pdf-cloud-node.js/blob/...working with API signature at Sign PDF Documents|Documentation Read...