Definitely, I'm working on that as we speak. I'm planning to offer the PDF upload capability on the letter input form that you see on the site.
Additionally, I'm thinking about creating the ability for people to just email something like "letters [at] snailpad.com" with the recipient's address in the subject line and either (1) the letter's content in the email body or (2) a PDF attachment of the letter content.
If they're a recognized user and have available credits in their balance, I'd shoot off a confirmation and queue it for physical mailing on the next day. Otherwise, I'd reply with an email containing a PDF preview of the letter and some text encouraging them to signup or reload their account.
Additionally, I'm thinking about creating the ability for people to just email something like "letters [at] snailpad.com" with the recipient's address in the subject line and either (1) the letter's content in the email body or (2) a PDF attachment of the letter content.
If they're a recognized user and have available credits in their balance, I'd shoot off a confirmation and queue it for physical mailing on the next day. Otherwise, I'd reply with an email containing a PDF preview of the letter and some text encouraging them to signup or reload their account.