diff --git a/doc/latex2sphinx/buildall_pdf b/doc/latex2sphinx/buildall_pdf
new file mode 100644
index 0000000000..176985dde2
--- /dev/null
+++ b/doc/latex2sphinx/buildall_pdf
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+LANGUAGES="${LANGUAGES:=c cpp py}"
+
+mkdir -p $LANGUAGES
+tput clear
+python latex.py ../online-opencv.tex $LANGUAGES || exit
+
+for D in $LANGUAGES
+do
+  echo $D
+  mkdir -p _build/latex/$D
+  cp conf.py $D
+  cp mymath.sty _build/latex/$D
+  TEXINPUTS=$PWD: sphinx-build -w $D/sphinx.errors -D "lang=$D" -b latex -d _build/doctrees/$D $D _build/latex/$D
+  (cd _build/latex/$D && rm *.aux *.toc *.log && pdflatex opencv.tex)
+done
diff --git a/doc/latex2sphinx/conf.py b/doc/latex2sphinx/conf.py
index 6275f3352f..a26aa47ceb 100644
--- a/doc/latex2sphinx/conf.py
+++ b/doc/latex2sphinx/conf.py
@@ -200,3 +200,5 @@ pngmath_latex_preamble = '\usepackage{mymath}\usepackage{amsmath}\usepackage{bbm
 #        'http://docs.python.org/': None,
 #    }
 intersphinx_mapping = {}
+
+latex_elements = {'preamble': '\usepackage{mymath}\usepackage{amssymb}\usepackage{amsmath}\usepackage{bbm}'}