diff --git a/internal/bootstrap/data/setting.go b/internal/bootstrap/data/setting.go
index 08024695..667bdb94 100644
--- a/internal/bootstrap/data/setting.go
+++ b/internal/bootstrap/data/setting.go
@@ -148,7 +148,10 @@ func InitialSettings() []model.SettingItem {
 		{Key: "audio_cover", Value: "https://res.oplist.org/logo/logo.svg", MigrationValue: "https://cdn.oplist.org/gh/OpenListTeam/Logo@main/logo.svg", Type: conf.TypeString, Group: model.PREVIEW},
 		{Key: conf.AudioAutoplay, Value: "true", Type: conf.TypeBool, Group: model.PREVIEW},
 		{Key: conf.VideoAutoplay, Value: "true", Type: conf.TypeBool, Group: model.PREVIEW},
+		{Key: conf.PreviewDownloadByDefault, Value: "false", Type: conf.TypeBool, Group: model.PREVIEW},
 		{Key: conf.PreviewArchivesByDefault, Value: "true", Type: conf.TypeBool, Group: model.PREVIEW},
+		{Key: conf.SharePreviewDownloadByDefault, Value: "true", Type: conf.TypeBool, Group: model.PREVIEW},
+		{Key: conf.SharePreviewArchivesByDefault, Value: "false", Type: conf.TypeBool, Group: model.PREVIEW},
 		{Key: conf.ReadMeAutoRender, Value: "true", Type: conf.TypeBool, Group: model.PREVIEW},
 		{Key: conf.FilterReadMeScripts, Value: "true", Type: conf.TypeBool, Group: model.PREVIEW},
 		// global settings
diff --git a/internal/conf/const.go b/internal/conf/const.go
index ba98ca16..9f7c06b0 100644
--- a/internal/conf/const.go
+++ b/internal/conf/const.go
@@ -24,17 +24,20 @@ const (
 	HideStorageDetailsInManagePage = "hide_storage_details_in_manage_page"
 
 	// preview
-	TextTypes                = "text_types"
-	AudioTypes               = "audio_types"
-	VideoTypes               = "video_types"
-	ImageTypes               = "image_types"
-	ProxyTypes               = "proxy_types"
-	ProxyIgnoreHeaders       = "proxy_ignore_headers"
-	AudioAutoplay            = "audio_autoplay"
-	VideoAutoplay            = "video_autoplay"
-	PreviewArchivesByDefault = "preview_archives_by_default"
-	ReadMeAutoRender         = "readme_autorender"
-	FilterReadMeScripts      = "filter_readme_scripts"
+	TextTypes                     = "text_types"
+	AudioTypes                    = "audio_types"
+	VideoTypes                    = "video_types"
+	ImageTypes                    = "image_types"
+	ProxyTypes                    = "proxy_types"
+	ProxyIgnoreHeaders            = "proxy_ignore_headers"
+	AudioAutoplay                 = "audio_autoplay"
+	VideoAutoplay                 = "video_autoplay"
+	PreviewDownloadByDefault      = "preview_download_by_default"
+	PreviewArchivesByDefault      = "preview_archives_by_default"
+	SharePreviewDownloadByDefault = "share_preview_download_by_default"
+	SharePreviewArchivesByDefault = "share_preview_archives_by_default"
+	ReadMeAutoRender              = "readme_autorender"
+	FilterReadMeScripts           = "filter_readme_scripts"
 
 	// global
 	HideFiles               = "hide_files"