DigiSigner Free

DigiSigner便携式让你在发票以及企业合同添加和验证数字签名的PDF文件。

DigiSigner is a tiny tool to digitally sign PDF files and verify signatures
Use it to secure your PDF documents like invoices and contracts
Design your individual signature appearances as you want
DigiSigner supports smartcards and Windows key store
You can sign PDF documents on Windows and Mac
Created signatures are Adobe Reader compatible
DigiSigner is very easy to use so try it now