diff --git a/tools/export-all-parts.sh b/tools/export-all-parts.sh
index cc116e8..ca9dbd6 100755
--- a/tools/export-all-parts.sh
+++ b/tools/export-all-parts.sh
@@ -19,3 +19,6 @@ git archive HEAD . | tar -x -C dist/FCStd
 
 # Start freecad to run the script. We must start freecad with GUI (otherwise we can't export colors). We start it hidden in a virtual framebuffer (xvfb) so that it can run cleanly in the background.
 xvfb-run $FREECAD tools/export-all-parts.py
+
+# Concatenate all PDFs in a single file
+pdfunite dist/PDF/tubes/* dist/PDF/tubes.pdf