4. The method of claim 1 wherein receiving the data including the encryption of text includes receiving the data including the encryption of text with return address information replaced so to not identify a device that captured the text from the rendered document.
1. A method, comprising: generating a security code at a server as part of a registration process; sending the security code from the server; after sending the security code, receiving data at the server including an encryption of text scanned from a rendered document, wherein the encryption of text is encrypted using the sent security code; and decrypting the scanned text included in the received data using the security code.