diff --git a/documentation/Makefile b/documentation/Makefile
--- a/documentation/Makefile
+++ b/documentation/Makefile
@@ -20,7 +20,13 @@
 PYTHON_CMD =	${LOCALBASE}/bin/python3
 RUBY_CMD =	${LOCALBASE}/bin/ruby
 HUGO_CMD =	${LOCALBASE}/bin/hugo
+ASCIIDOCTORPDF_CMD=	/usr/local/bin/asciidoctor-pdf
+.if defined(DOC_LANG) || !empty(DOC_LANG)
+LANGUAGES =	${DOC_LANG}
+.else
 LANGUAGES =	en,es,pt-br,de,ja,zh-cn,zh-tw,ru,el,hu,it,mn,nl,pl,fr
+.endif
+
 RUBYLIB =	../shared/lib
 .export	RUBYLIB
 
@@ -72,3 +78,81 @@
 
 build: .PHONY
 	${HUGO_CMD} --minify
+
+#
+# PDF targets
+# Use DOC_LANG to choose the language, e.g., make DOC_LANG="en,fr" pdf-books
+#
+pdf-books-target:
+.for _lang in ${LANGUAGES:S|,| |g}
+TMP += ${.CURDIR}/content/${_lang}/books/*/
+.endfor
+BOOKSDIR != echo ${TMP}
+
+pdf-articles-target:
+.for _lang in ${LANGUAGES:S|,| |g}
+TTMP += ${.CURDIR}/content/${_lang}/articles/*/
+.endfor
+ARTICLESDIR != echo ${TTMP}
+
+pdf-books: pdf-books-target generate-books-toc
+
+# Books build
+.for _curpdf in ${BOOKSDIR}
+.if exists(${_curpdf}book.adoc)
+	${ASCIIDOCTORPDF_CMD} \
+	-r ./shared/lib/man-macro.rb \
+	-r ./shared/lib/man-macro.rb \
+	-r ./shared/lib/git-macro.rb \
+	-r ./shared/lib/packages-macro.rb \
+	-r ./shared/lib/inter-document-references-macro.rb \
+	-r ./shared/lib/sectnumoffset-treeprocessor.rb \
+	--doctype=book \
+	-a skip-front-matter \
+	-a pdf-theme=./themes/default-pdf-theme.yml \
+	-o ${_curpdf}book.pdf \
+	${_curpdf}book.adoc
+.else
+# some books use _index.adoc as main document
+	${ASCIIDOCTORPDF_CMD} \
+	-r ./shared/lib/man-macro.rb \
+	-r ./shared/lib/man-macro.rb \
+	-r ./shared/lib/git-macro.rb \
+	-r ./shared/lib/packages-macro.rb \
+	-r ./shared/lib/inter-document-references-macro.rb \
+	-r ./shared/lib/sectnumoffset-treeprocessor.rb \
+	--doctype=book \
+	-a skip-front-matter \
+	-a pdf-theme=./themes/default-pdf-theme.yml \
+	-o ${_curpdf}book.pdf \
+	${_curpdf}_index.adoc
+.endif
+.endfor
+
+pdf-articles: pdf-articles-target
+
+# Articles buil
+.for _curpdf in ${ARTICLESDIR}
+	${ASCIIDOCTORPDF_CMD} \
+	-r ./shared/lib/man-macro.rb \
+	-r ./shared/lib/man-macro.rb \
+	-r ./shared/lib/git-macro.rb \
+	-r ./shared/lib/packages-macro.rb \
+	-r ./shared/lib/inter-document-references-macro.rb \
+	-r ./shared/lib/sectnumoffset-treeprocessor.rb \
+	--doctype=article \
+	-a skip-front-matter \
+	-a pdf-theme=./themes/default-pdf-theme.yml \
+	-o ${_curpdf}article.pdf \
+	${_curpdf}_index.adoc
+.endfor
+
+pdf-books-clean: pdf-books-target
+.for _curpdf in ${BOOKSDIR}
+	rm -f ${_curpdf}book.pdf ${_curpdf}toc*.adoc
+.endfor
+
+pdf-articles-clean: pdf-articles-target
+.for _curpdf in ${ARTICLESDIR}
+	rm -f ${_curpdf}article.pdf
+.endfor