PDF Signer or P7S Signer product will be offered free of charge if you will purchase one of Qualified Timestamping package.
PDF Signer
The main function of PDF Signer is to digitally sign PDF documents using X.509 digital certificates. Using this product you can quickly sign multiple PDF files (bulk sign) by selecting input and output directory. This is ideal for batch signing of a large number of documents rather than signing each one individually.
P7S Signer
Using P7S Signer you can quickly sign multiple files (any type of files) in PKCS#7/CAdES format by selecting input and output directory. This is ideal for bulk signing of large number of files. The files digitally signed with P7S Signer has the p7s or p7m extension and are saved in PKCS#7/CAdES format.
.NET Digital Signature Library
The main function of .NET Digital Signature Library is to digitally sign and timestamp files in PDF, CAdES or PKCS#7 cryptographic standard (.P7S or .P7M files) using X.509 certificates stored on PFX files or smart cards, USB tokens, HSM’s (Hardware Security Modules) stored on Microsoft Certificate Store.
Root Certificates are available here: TSA Root Certificates