diff --git a/cover_letters/2019-09-CL-Elastic-Senior-Java-Engineer-Security.sty b/cover_letters/2019-09-CL-Elastic-Senior-Java-Engineer-Security.tex
similarity index 100%
rename from cover_letters/2019-09-CL-Elastic-Senior-Java-Engineer-Security.sty
rename to cover_letters/2019-09-CL-Elastic-Senior-Java-Engineer-Security.tex
diff --git a/scripts/build-pdf-cover-letter-docker.sh b/scripts/build-pdf-cover-letter-docker.sh
new file mode 100755
index 0000000..c9ed195
--- /dev/null
+++ b/scripts/build-pdf-cover-letter-docker.sh
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+set -e
+set -x
+
+cd /source
+
+userid="$(cat userid.info)"
+
+# Script to build a PDF from the latex source
+latex --output-format pdf "${1}"
+outfile="$(basename -- ${1} | cut -f1 -d'.')"
+chown $userid:$userid ${outfile}.pdf
+chmod 666 ${outfile}.pdf
+mv "${outfile}.pdf" "cover_letters/${outfile}.pdf"
+
+rm ${outfile}.log
+rm ${outfile}.aux
diff --git a/scripts/build-pdf-cover-letter.sh b/scripts/build-pdf-cover-letter.sh
new file mode 100755
index 0000000..993300c
--- /dev/null
+++ b/scripts/build-pdf-cover-letter.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+set -e
+set -x
+
+echo "$(id -u)" > userid.info
+
+# Script to build a PDF from the latex source
+docker run -it \
+	-v $(pwd):/source \
+	schickling/latex \
+	/usr/bin/env bash /source/scripts/build-pdf-cover-letter-docker.sh $1
+
+./scripts/cleanup-latex.sh
+
+rm userid.info