diff --git a/pages/common/pdfposter.md b/pages/common/pdfposter.md
index ec8ef9d2f7..7581850cc8 100644
--- a/pages/common/pdfposter.md
+++ b/pages/common/pdfposter.md
@@ -1,6 +1,7 @@
 # pdfposter
 
 > Convert a large-sheeted pdf into multiple A4 pages for printing.
+> More information: <https://pdfposter.readthedocs.io>.
 
 - Convert an A2 poster into 4 A4 pages: