diff --git a/lib/components/gallery_info_desktop.dart b/lib/components/gallery_info_desktop.dart
index 50bc358..e4db358 100644
--- a/lib/components/gallery_info_desktop.dart
+++ b/lib/components/gallery_info_desktop.dart
@@ -3,6 +3,7 @@ import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 import 'package:intl/intl.dart';
 import '../api/gallery.dart';
 import '../main.dart';
+import '../utils/filesize.dart';
 import 'tags.dart';
 import 'thumbnail.dart';
 
@@ -95,6 +96,21 @@ class GalleryInfoDesktop extends StatelessWidget {
                                 gData.meta.expunged ? i18n.no : i18n.yes,
                                 fontSize: 12,
                               ),
+                              _KeyValue(
+                                "${i18n.fileSize}${i18n.colon}",
+                                getFileSize(gData.meta.filesize),
+                                fontSize: 12,
+                              ),
+                              _KeyValue(
+                                "${i18n.pageLength}${i18n.colon}",
+                                i18n.pages(gData.meta.filecount),
+                                fontSize: 12,
+                              ),
+                              _KeyValue(
+                                "${i18n.gid}${i18n.colon}",
+                                gData.meta.gid.toString(),
+                                fontSize: 12,
+                              ),
                             ])),
                         const VerticalDivider(indent: 10, endIndent: 10),
                         Expanded(child: TagsPanel(gData.tags)),
diff --git a/lib/l10n/app_en.arb b/lib/l10n/app_en.arb
index a401404..e69fd5a 100644
--- a/lib/l10n/app_en.arb
+++ b/lib/l10n/app_en.arb
@@ -40,5 +40,17 @@
     "posted": "Posted",
     "visible": "Visible",
     "yes": "Yes",
-    "no": "No"
+    "no": "No",
+    "fileSize": "File Size",
+    "pageLength": "Length",
+    "pages": "{value} pages",
+    "@pages": {
+        "placeholders": {
+            "value": {
+                "type": "int",
+                "format": "decimalPattern"
+            }
+        }
+    },
+    "gid": "Gallery Id"
 }
diff --git a/lib/l10n/app_zh.arb b/lib/l10n/app_zh.arb
index 59859cc..e50d941 100644
--- a/lib/l10n/app_zh.arb
+++ b/lib/l10n/app_zh.arb
@@ -40,5 +40,17 @@
     "posted": "上传时间",
     "visible": "可见性",
     "yes": "是",
-    "no": "否"
+    "no": "否",
+    "fileSize": "文件大小",
+    "pageLength": "页数",
+    "pages": "{value} 页",
+    "@pages": {
+        "placeholders": {
+            "value": {
+                "type": "int",
+                "format": "decimalPattern"
+            }
+        }
+    },
+    "gid": "画廊ID"
 }
diff --git a/lib/utils/filesize.dart b/lib/utils/filesize.dart
new file mode 100644
index 0000000..2d2d112
--- /dev/null
+++ b/lib/utils/filesize.dart
@@ -0,0 +1,14 @@
+const suffixes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
+const suffixesB = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'];
+
+String getFileSize(int size, {int fractionDigits = 2, bool base1024 = true}) {
+  final suffix = base1024 ? suffixesB : suffixes;
+  final base = base1024 ? 1024.0 : 1000.0;
+  var n = size.toDouble();
+  int ind = 0;
+  while (n >= base && ind < suffix.length - 1) {
+    n /= base;
+    ind++;
+  }
+  return '${n.toStringAsFixed(fractionDigits)} ${suffix[ind]}';
+}