diff --git a/presentation.md b/presentation.md
index e8e01a8..3afc496 100644
--- a/presentation.md
+++ b/presentation.md
@@ -159,18 +159,18 @@ Erfahrung mit VR|Min: 1, Max: 3, Mittelwert: 1,6 (Skala von 1 bis 7)
 
 ## PDF
 
-![](./images/pdf_qrcode.png)
+[![](./images/pdf_qrcode.png)](https://pages.ct.cozytren.ch/sti-presentation/presentation.pdf)
 
 </div><div align="center">
 
 ## HTML
 
-![](./images/html_qrcode.png)
+[![](./images/html_qrcode.png)](https://pages.ct.cozytren.ch/sti-presentation)
 
 </div><div align="center">
 
 ## Repository
 
-![](./images/repo_qrcode.png)
+[![](./images/repo_qrcode.png)](https://gitea.ct.cozytren.ch/romane/sti-presentation)
 
 </div></div>
\ No newline at end of file