Simply Beautiful PDF Letters from Markdown

Write beautiful yet customizable letters in R Markdown and directly obtain the finished PDF. Smooth generation of PDFs is realized by 'rmarkdown', the 'pandoc-letter' template and the 'KOMA-Script' letter class. 'KOMA-Script' provides enhanced replacements for the standard 'LaTeX' classes with emphasis on typography and versatility. 'KOMA-Script' is particularly useful for international writers as it handles various paper formats well, provides layouts for many common window envelope types (e.g. German, US, French, Japanese) and lets you define your own layouts. The package comes with a default letter layout based on 'DIN 5008B'.

Travis build status Package-License CRAN DOI


Simple letters tend to look very much alike. They are either determined by a standard eg. window envelope style or writer's preferences. Thus, if the layout is fix, they lend themselves to be written in R Markdown.

The KOMA-Script LaTeX Bundle provides layouts for many common window envelope types (German, US, French, Japanese, ...) and the possibility to define your own layout. The komaletter package also provides it's own default layout loosely based on DIN 5008B.

This package is an adaptation of the linl package by Dirk Eddelbuettel and Aaron Wolen. Which leans on earlier work by Aaron Wolen in his pandoc-letter repository and extends it for use from R via the rmarkdown package.



The skeleton creates a very simple letter as a starting point for your own writing. Several formatting defaults for font, fontsize, indentation are in use. See vignette('intro', 'komaletter') and help(komaletter) for a complete list and default values. The following figure shows the complete source on the left and the rendered pdf on the right.


The vignette examples are a little more featureful and show how to include a signature, choose a different layout and a few formatting settings. All of these are driven by simple YAML headers as seen on the left. The vignettes also contain a few lines of vignette metadata one would be excluded from a normal letter.


As the package is on CRAN, you can use the standard incantation to install the released version. A development version of komaletter can be installed from Github using the package devtools.

# the easiest way is to install from CRAN
# or get the development version from Github
# install.packages("devtools")


To start a new letter one can call the skeleton using the rmarkdown::draft or the RStudio menu: New File > R markdown... The document can be compiled to PDF via rmarkdown::render or the RStudio Knit button.

# load rmarkdown
# komaletter enhances rmarkdown and doesn't need to be loaded
# start a new letter using the provided skeleton
draft("myletter.Rmd", template="pdf", package="komaletter", edit=FALSE)
# change myletter.Rmd to your liking
# turn Rmd into a beautiful PDF


Beyond the R package dependencies, a working pandoc binary and a LaTeX distribution including KOMA-Script is needed. RStudio installs it's own copy of pandoc, otherwise do what is needed on your OS. For LaTeX look for texlive which is included in most Linux distributions or MiKTeX if you are using Windows. KOMA-Script is part of all but the most bare bone LaTeX distributions. Something like sudo apt-get install pandoc pandoc-citeproc texlive should provide everything needed on Debian/Ubuntu.

If you plan to write non-english letter, make sure you have the necessary language packs, i.e texlive-lang-german.


Robert Nuske, Dirk Eddelbuettel and Aaron Wolen.


GPL-3 for this package, the work in pandoc-letter, as well as underlying Pandoc template.


komaletter 0.3

  • added vignette describing parameterized letters for mass mailings
  • reduced mandatory YAML metadata header items to 'output' (dispensed with 'opening', 'address', 'author')
  • introduced continuous integration service Travis CI

komaletter 0.2

  • protected path to default lco in LaTeX file against breaking at whitespace on windows
  • renamed maintainers_delight.lco to avoid pandoc problems with underscores in paths

komaletter 0.1

  • intial version based on linl version 0.0.2 but uses KOMA-Script class 'scrlttr2' instead of LaTeX class 'letter'

Reference manual

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0.4.2 by Robert Nuske, 9 months ago

Report a bug at

Browse source code at

Authors: Robert Nuske [aut, cre] , Dirk Eddelbuettel [aut] , Aaron Wolen [aut]

Documentation:   PDF Manual  

GPL-3 license

Imports rmarkdown

Suggests knitr

See at CRAN