diff --git a/docs/source/tech_storage.rst b/docs/source/tech_storage.rst
index 6bb51cfc..e833c135 100644
--- a/docs/source/tech_storage.rst
+++ b/docs/source/tech_storage.rst
@@ -4,6 +4,9 @@
 How Data is Stored
 ******************
 
+.. _File Format Spec 1.5: _static/fileformatspec15.pdf
+.. _documentation: https://novelwriter.readthedocs.io
+
 This section contains details of how novelWriter stores and handles the project data.
 
 
@@ -39,6 +42,15 @@ The project XML file is indent-formatted, and is suitable for diff tools and ver
 most of the file will stay static, although a timesetamp is set in the meta section on line 2, and
 various meta data entries incremented, on each save.
 
+.. only:: not html
+
+   A full project file format specification is available in the online documentation_.
+
+.. only:: html
+
+   A full description of the current file format is available in the `File Format Spec 1.5`_
+   document, available as a PDF.
+
 
 Project Documents
 =================