This template allows you to write letters in Markdown and convert them to nice looking PDFs using Pandoc and LaTeX. It's basically just a copy of Pandoc's default LaTeX template, slightly modified to accept arguments used in the LaTeX letter class, including:

• opening
• closing
• address
• return-address
• postscript
• enclosures list
• carbon-copy list

All of which can be specified in a YAML metadata block. For example:

---
author: Aaron
opening: To whom it may concern,
closing: Sincerely,
address:
- 123 Street Rd
- Chicago, IL
return-address:
- My Home
- 456 Road St.
- New York, NY
...

Note that each address component should start with a hyphen. The provided example letter can be compiled with the following command:

pandoc --template=template-letter.tex example/letter.md -o example/letter.pdf

You can see the PDF output here.

The following can be set either as variables when executing pandoc or added to the YAML metadata.

address : Name and address of the recipient; takes a list for a multi-line address.

author : Writer of the letter; can take a list for a multi-line signature.

blockquote : Changes style of block quotations to match bootstrap.

cc : Recipients to be carbon-copied; can take a list for multiple recipients.

closing : Text for the complementary close.

closing-indentation : Amount for closing signature block to be intended from left margin.

date : Custom date (current date will be automatically inserted if not specified).

encl : List of enclosures.

letterhead : Image file to be used as letterhead (requires the wallpaper package), applied only to the first page.

opening : Text for the salutation.

ps : Text to be added at the end of the letter as a postscript.

return-address : Address of the sender: takes a list to allow a multi-line address.

signature : Image file for a signature.

signature-before, signature-after : Allows adjustment of vertical space surrounding signature.