diff --git a/docs/getting_started/img/server_preset_image_add.PNG b/docs/getting_started/img/server_preset_image_add.png similarity index 100% rename from docs/getting_started/img/server_preset_image_add.PNG rename to docs/getting_started/img/server_preset_image_add.png diff --git a/docs/getting_started/img/server_preset_image_admin.PNG b/docs/getting_started/img/server_preset_image_admin.png similarity index 100% rename from docs/getting_started/img/server_preset_image_admin.PNG rename to docs/getting_started/img/server_preset_image_admin.png diff --git a/docs/getting_started/img/server_preset_image_normal_server.PNG b/docs/getting_started/img/server_preset_image_normal_server.png similarity index 100% rename from docs/getting_started/img/server_preset_image_normal_server.PNG rename to docs/getting_started/img/server_preset_image_normal_server.png diff --git a/docs/getting_started/img/server_preset_image_report.PNG b/docs/getting_started/img/server_preset_image_report.png similarity index 100% rename from docs/getting_started/img/server_preset_image_report.PNG rename to docs/getting_started/img/server_preset_image_report.png