diff --git a/CHANGELOG b/CHANGELOG
index 61238a9bd..33c902e55 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -73,6 +73,7 @@ Core:
 Mediafiles:
 - Fixed reloading of PDF on page change [#3274].
 - Custom CKEditor plugin for browsing mediafiles [#3337].
+- Project images always in fullscreen [#3355].
 
 General:
 - Several bugfixes and minor improvements.
diff --git a/openslides/mediafiles/static/js/mediafiles/list.js b/openslides/mediafiles/static/js/mediafiles/list.js
index c74af76c3..c9c7f1282 100644
--- a/openslides/mediafiles/static/js/mediafiles/list.js
+++ b/openslides/mediafiles/static/js/mediafiles/list.js
@@ -158,7 +158,7 @@ angular.module('OpenSlidesApp.mediafiles.list', [
                         rotate: 0,
                         visible: true,
                         playing: false,
-                        fullscreen: mediafile.is_pdf
+                        fullscreen: mediafile.is_pdf || mediafile.is_image
                 }];
                 $http.post(postUrl, data);
             }
diff --git a/openslides/mediafiles/static/templates/mediafiles/mediafile-list.html b/openslides/mediafiles/static/templates/mediafiles/mediafile-list.html
index b8c2927fb..5669d8a6d 100644
--- a/openslides/mediafiles/static/templates/mediafiles/mediafile-list.html
+++ b/openslides/mediafiles/static/templates/mediafiles/mediafile-list.html
@@ -60,7 +60,7 @@
               <button class="btn" ng-click="mediafileFit(presentedMediafile)"
                   title="{{ 'Reset zoom' | translate }}"
                   ng-class="presentedMediafile.scale=='page-fit' ? 'btn-primary' : 'btn-default'">
-                <i class="fa fa-arrows-alt"></i>
+                <i class="fa fa-undo"></i>
               </button>
               <button class="btn btn-default" ng-click="mediafileZoomIn(presentedMediafile)"
                   title="{{ 'Zoom in' | translate }}">