Digitaly Sign PDFs with pdfMachine pro

By digitally signing a document you are providing a mathematical way for you and others to verify the signed documents authenticity.    Readers such as Acrobat Reader natively support digital signature verification.

To create a signature, you need a digital certificate.  A digital certificate establishes your identity.  pdfMachine uses Certificates that are present in your Windows Personal Certificate Store.

You can get Certificates from Certificate Authorities (CA's).  CA's  are companies or organizations that generate Certificates and allow you to install them on your PC.

pdfMachine also allows you to make your own certificates, which are called "Self signed" certificates.  

pdfMachine pro digital signature features:

• A pdfMachine virtual printer can be configured to automatically sign any document printed to it.
• Signature images can be "hand drawn" or selected from a file.
• Cryptographically provable timestamping of documents (RFC 3161).
• Make your own "Self signed" certificates for quick and easy signing.

pdfMachine pro also supports inserting signature images without digital signing.