diff --git a/Makefile b/Makefile
new file mode 100644
index 00000000..4dbd5c5e
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,6 @@
+preprocessor.pdf: preprocessor.tex expr.png expr-sharing.png matrices.png overview.png
+	pdflatex preprocessor
+	pdflatex preprocessor
+
+clean:
+	rm -f preprocessor.{pdf,toc,aux,log,nav,snm,vrb,out} *~
diff --git a/preprocessor.pdf b/preprocessor.pdf
deleted file mode 100644
index d4fd47ab..00000000
Binary files a/preprocessor.pdf and /dev/null differ