diff --git a/services/web/frontend/js/features/pdf-preview/hooks/use-presentation-mode.ts b/services/web/frontend/js/features/pdf-preview/hooks/use-presentation-mode.ts
index 2d3cb9d4e6..fd907959c6 100644
--- a/services/web/frontend/js/features/pdf-preview/hooks/use-presentation-mode.ts
+++ b/services/web/frontend/js/features/pdf-preview/hooks/use-presentation-mode.ts
@@ -51,11 +51,14 @@ export default function usePresentationMode(
       switch (event.key) {
         case 'ArrowLeft':
         case 'ArrowUp':
+        case 'PageUp':
+        case 'Backspace':
           previousPage()
           break
 
         case 'ArrowRight':
         case 'ArrowDown':
+        case 'PageDown':
           nextPage()
           break