1)   pdfMachine Signer 10.9
pdfMachine - Signer is the easy way to digitally sign your PDF files. Simply, quickly and lowpriced , Sending 1 to 1 signed copies of a document. It's never been so easy to send save documents per e-mail.

 2)   WebPen 1.02
The future of document signing is here! Allow your website users to sign online documents, forms, or agreements instantly using the mouse as a pen! Avoids lost sales. Free version has watermark, commercial version does not.