Abstract: A method and apparatus is provided for effecting secure document delivery in any of various document formats. A document is encrypted with the public key of a server associated with the recipient of the document, instead of with the public key of the intended recipient. The receiving server is located within a firewall. The encrypted document is forwarded to the server within the firewall. The server decrypts the document using its corresponding private key, converts the document to a new data representation, and then either forwards the document to the recipient inside the firewall, or re-encrypts the document with the public key of an intended recipient outside of the firewall or with the public key of another server that is associated with the intended recipient of the document.

Abstract: An electronic document delivery system and methods of its use are provided. A document, preferably in a portable format, is forwarded to a remote server (e.g. using HTTP to "push" the document to the server). The server sends a generic notification of the document to an intended recipient, and the recipient can download the document from the server using local protocols. In preferred embodiments, the invention is used for the controlled delivery of portable documents from a sender to a large number of recipients, using a network of servers that route the documents and notifications in a store and forward manner, while providing routing and accounting information back to the sender.