diff --git a/locales/ar-SA/opencadstudio.ftl b/locales/ar-SA/opencadstudio.ftl
index 83175dbf1..ad519831f 100644
--- a/locales/ar-SA/opencadstudio.ftl
+++ b/locales/ar-SA/opencadstudio.ftl
@@ -863,6 +863,7 @@ common =
     .recent-documents = المستندات الأخيرة
     .recent-files = الملفات الأخيرة
     .recent-file-no-longer-exists = الملف الأخير لم يعد موجودًا: __ocs_fmt_0__
+    .web-drawing-too-large = حجم هذا الرسم __ocs_fmt_0__ ميغابايت، وهو أكبر مما يتعامل معه إصدار المتصفح بشكل موثوق. افتحه في تطبيق سطح المكتب.
     .red = أحمر
     .redo-last-label = إعادة: __ocs_fmt_0__
     .reference = مرجع
diff --git a/locales/bg-BG/opencadstudio.ftl b/locales/bg-BG/opencadstudio.ftl
index cc20285c3..c19396747 100644
--- a/locales/bg-BG/opencadstudio.ftl
+++ b/locales/bg-BG/opencadstudio.ftl
@@ -850,6 +850,7 @@ common =
     .recent-documents = Скорошни документи
     .recent-files = Скорошни файлове
     .recent-file-no-longer-exists = Скорошният файл вече не съществува: __ocs_fmt_0__
+    .web-drawing-too-large = Този чертеж е __ocs_fmt_0__ MB – повече, отколкото браузърната версия обработва надеждно. Отворете го в настолното приложение.
     .red = Червено
     .redo-last-label = Повтори: __ocs_fmt_0__
     .reference = Референция
diff --git a/locales/cs-CZ/opencadstudio.ftl b/locales/cs-CZ/opencadstudio.ftl
index 66afe10f6..db51e792d 100644
--- a/locales/cs-CZ/opencadstudio.ftl
+++ b/locales/cs-CZ/opencadstudio.ftl
@@ -850,6 +850,7 @@ common =
     .recent-documents = Nedávné dokumenty
     .recent-files = Nedávné soubory
     .recent-file-no-longer-exists = Poslední soubor již neexistuje: __ocs_fmt_0__
+    .web-drawing-too-large = Tento výkres má __ocs_fmt_0__ MB, víc, než verze v prohlížeči spolehlivě zvládne. Otevřete jej v desktopové aplikaci.
     .red = Červená
     .redo-last-label = Znovu: __ocs_fmt_0__
     .reference = Odkaz
diff --git a/locales/de-DE/opencadstudio.ftl b/locales/de-DE/opencadstudio.ftl
index 61eef3101..f17ba6aa8 100644
--- a/locales/de-DE/opencadstudio.ftl
+++ b/locales/de-DE/opencadstudio.ftl
@@ -851,6 +851,7 @@ common =
     .recent-documents = Letzte Dokumente
     .recent-files = Zuletzt geöffnete Dateien
     .recent-file-no-longer-exists = Aktuelle Datei existiert nicht mehr: __ocs_fmt_0__
+    .web-drawing-too-large = Diese Zeichnung ist __ocs_fmt_0__ MB groß, mehr als die Browserversion zuverlässig verarbeitet. Öffnen Sie sie in der Desktop-App.
     .red = Rot
     .redo-last-label = Rep.: __ocs_fmt_0__
     .reference = Referenz
diff --git a/locales/el-GR/opencadstudio.ftl b/locales/el-GR/opencadstudio.ftl
index 07d706269..49108530f 100644
--- a/locales/el-GR/opencadstudio.ftl
+++ b/locales/el-GR/opencadstudio.ftl
@@ -852,6 +852,7 @@ common =
     .recent-documents = Πρόσφατα έγγραφα
     .recent-files = Πρόσφατα αρχεία
     .recent-file-no-longer-exists = Το πρόσφατο αρχείο δεν υπάρχει πλέον: __ocs_fmt_0__
+    .web-drawing-too-large = Αυτό το σχέδιο είναι __ocs_fmt_0__ MB, περισσότερο από όσο χειρίζεται αξιόπιστα η έκδοση του προγράμματος περιήγησης. Ανοίξτε το στην εφαρμογή επιφάνειας εργασίας.
     .red = Κόκκινο
     .redo-last-label = Επανάληψη: __ocs_fmt_0__
     .reference = Αναφορά
diff --git a/locales/en-US/opencadstudio.ftl b/locales/en-US/opencadstudio.ftl
index e241beee5..1dc652e4f 100644
--- a/locales/en-US/opencadstudio.ftl
+++ b/locales/en-US/opencadstudio.ftl
@@ -849,6 +849,7 @@ common =
     .recent-documents = Recent Documents
     .recent-files = Recent Files
     .recent-file-no-longer-exists = Recent file no longer exists: __ocs_fmt_0__
+    .web-drawing-too-large = This drawing is __ocs_fmt_0__ MB, more than the browser version handles reliably. Open it in the desktop app.
     .red = Red
     .redo-last-label = Redo: __ocs_fmt_0__
     .reference = Reference
diff --git a/locales/es-ES/opencadstudio.ftl b/locales/es-ES/opencadstudio.ftl
index 9a4f1c86b..ad9a8b099 100644
--- a/locales/es-ES/opencadstudio.ftl
+++ b/locales/es-ES/opencadstudio.ftl
@@ -851,6 +851,7 @@ common =
     .recent-documents = Documentos recientes
     .recent-files = Archivos recientes
     .recent-file-no-longer-exists = El archivo reciente ya no existe: __ocs_fmt_0__
+    .web-drawing-too-large = Este dibujo ocupa __ocs_fmt_0__ MB, más de lo que la versión del navegador maneja con fiabilidad. Ábralo en la aplicación de escritorio.
     .red = Rojo
     .redo-last-label = Rehacer: __ocs_fmt_0__
     .reference = Referencia
diff --git a/locales/fi-FI/opencadstudio.ftl b/locales/fi-FI/opencadstudio.ftl
index 0ec188498..683854b2f 100644
--- a/locales/fi-FI/opencadstudio.ftl
+++ b/locales/fi-FI/opencadstudio.ftl
@@ -850,6 +850,7 @@ common =
     .recent-documents = Viimeaikaiset asiakirjat
     .recent-files = Viimeisimmät tiedostot
     .recent-file-no-longer-exists = Viimeisintä tiedostoa ei enää ole: __ocs_fmt_0__
+    .web-drawing-too-large = Tämä piirustus on __ocs_fmt_0__ Mt, enemmän kuin selainversio käsittelee luotettavasti. Avaa se työpöytäsovelluksessa.
     .red = Punainen
     .redo-last-label = Toista: __ocs_fmt_0__
     .reference = Viite
diff --git a/locales/fr-FR/opencadstudio.ftl b/locales/fr-FR/opencadstudio.ftl
index ae9d437ba..4ce433eea 100644
--- a/locales/fr-FR/opencadstudio.ftl
+++ b/locales/fr-FR/opencadstudio.ftl
@@ -851,6 +851,7 @@ common =
     .recent-documents = Documents récents
     .recent-files = Fichiers récents
     .recent-file-no-longer-exists = Le fichier récent n'existe plus : __ocs_fmt_0__
+    .web-drawing-too-large = Ce dessin fait __ocs_fmt_0__ Mo, plus que ce que la version navigateur gère de façon fiable. Ouvrez-le dans l'application de bureau.
     .red = Rouge
     .redo-last-label = Refaire le texte suivant: __ocs_fmt_0__
     .reference = Référence
diff --git a/locales/hi-IN/opencadstudio.ftl b/locales/hi-IN/opencadstudio.ftl
index db5a95696..d1b81d90a 100644
--- a/locales/hi-IN/opencadstudio.ftl
+++ b/locales/hi-IN/opencadstudio.ftl
@@ -839,6 +839,7 @@ common =
     .recent-documents = हाल के दस्तावेज़
     .recent-files = हाल ही में फ़ाइलें
     .recent-file-no-longer-exists = हाल ही में फ़ाइल अब मौजूद नहीं है: __ocs_fmt_0__
+    .web-drawing-too-large = यह ड्रॉइंग __ocs_fmt_0__ MB की है, जो ब्राउज़र संस्करण के विश्वसनीय रूप से संभालने से अधिक है। इसे डेस्कटॉप ऐप में खोलें।
     .red = लाल
     .redo-last-label = रेनो: __ocs_fmt_0__
     .reference = संदर्भ
diff --git a/locales/hu-HU/opencadstudio.ftl b/locales/hu-HU/opencadstudio.ftl
index a31cd56a4..3f0cae98d 100644
--- a/locales/hu-HU/opencadstudio.ftl
+++ b/locales/hu-HU/opencadstudio.ftl
@@ -855,6 +855,7 @@ common =
     .recent-documents = Legutóbbi dokumentumok
     .recent-files = Legutóbbi fájlok
     .recent-file-no-longer-exists = A legutóbbi fájl már nem létezik: __ocs_fmt_0__
+    .web-drawing-too-large = Ez a rajz __ocs_fmt_0__ MB, több, mint amit a böngészős változat megbízhatóan kezel. Nyissa meg az asztali alkalmazásban.
     .red = Piros
     .redo-last-label = Újra: __ocs_fmt_0__
     .reference = Hivatkozás
diff --git a/locales/it-IT/opencadstudio.ftl b/locales/it-IT/opencadstudio.ftl
index 1d1563b99..19dd0e132 100644
--- a/locales/it-IT/opencadstudio.ftl
+++ b/locales/it-IT/opencadstudio.ftl
@@ -850,6 +850,7 @@ common =
     .recent-documents = Documenti recenti
     .recent-files = File recenti
     .recent-file-no-longer-exists = Il file recente non esiste più: __ocs_fmt_0__
+    .web-drawing-too-large = Questo disegno è di __ocs_fmt_0__ MB, più di quanto la versione browser gestisca in modo affidabile. Aprilo nell'app desktop.
     .red = Rosso
     .redo-last-label = Rifare: __ocs_fmt_0__
     .reference = Riferimento
diff --git a/locales/ja-JP/opencadstudio.ftl b/locales/ja-JP/opencadstudio.ftl
index 26de504d7..4d62bf1af 100644
--- a/locales/ja-JP/opencadstudio.ftl
+++ b/locales/ja-JP/opencadstudio.ftl
@@ -841,6 +841,7 @@ common =
     .recent-documents = 最近使ったドキュメント
     .recent-files = 最近使ったファイル
     .recent-file-no-longer-exists = 最近使ったファイルがありません: __ocs_fmt_0__
+    .web-drawing-too-large = この図面は __ocs_fmt_0__ MB で、ブラウザー版で確実に扱える大きさを超えています。デスクトップ アプリで開いてください。
     .red = 赤
     .redo-last-label = やり直し: __ocs_fmt_0__
     .reference = 参照
diff --git a/locales/ko-KR/opencadstudio.ftl b/locales/ko-KR/opencadstudio.ftl
index c43410f04..e3a8d82b7 100644
--- a/locales/ko-KR/opencadstudio.ftl
+++ b/locales/ko-KR/opencadstudio.ftl
@@ -850,6 +850,7 @@ common =
     .recent-documents = 최근 문서
     .recent-files = 최근 파일
     .recent-file-no-longer-exists = 최근 파일이 더 이상 존재하지 않습니다: __ocs_fmt_0__
+    .web-drawing-too-large = 이 도면은 __ocs_fmt_0__ MB로, 브라우저 버전이 안정적으로 처리할 수 있는 크기를 넘습니다. 데스크톱 앱에서 여세요.
     .red = 빨간색
     .redo-last-label = 다시 실행: __ocs_fmt_0__
     .reference = 참고자료
diff --git a/locales/lo-LA/opencadstudio.ftl b/locales/lo-LA/opencadstudio.ftl
index 8f51fc302..948cb0ea3 100644
--- a/locales/lo-LA/opencadstudio.ftl
+++ b/locales/lo-LA/opencadstudio.ftl
@@ -856,6 +856,7 @@ common =
     .recent-documents = ເອກະສານຫຼ້າສຸດ
     .recent-files = ໄຟລ໌ຫຼ້າສຸດ
     .recent-file-no-longer-exists = ໄຟລ໌ຫຼ້າສຸດບໍ່ມີຢູ່ນີ້ອີກຕໍ່ໄປ: __ocs_fmt_0__
+    .web-drawing-too-large = ແບບແຕ້ມນີ້ມີຂະໜາດ __ocs_fmt_0__ MB, ໃຫຍ່ເກີນກວ່າທີ່ລຸ້ນບຣາວເຊີຈະຈັດການໄດ້ຢ່າງໝັ້ນໃຈ. ກະລຸນາເປີດໃນແອັບເດັສທັອບ.
     .red = ສີແດງ
     .redo-last-label = ເຮັດຄືນ: __ocs_fmt_0__
     .reference = ອ້າງອີງ
diff --git a/locales/nl-NL/opencadstudio.ftl b/locales/nl-NL/opencadstudio.ftl
index 761118ba4..d9e87d487 100644
--- a/locales/nl-NL/opencadstudio.ftl
+++ b/locales/nl-NL/opencadstudio.ftl
@@ -849,6 +849,7 @@ common =
     .recent-documents = Recente documenten
     .recent-files = Recente bestanden
     .recent-file-no-longer-exists = Recent bestand bestaat niet meer: __ocs_fmt_0__
+    .web-drawing-too-large = Deze tekening is __ocs_fmt_0__ MB, meer dan de browserversie betrouwbaar aankan. Open hem in de desktop-app.
     .red = Rood
     .redo-last-label = Opnieuw: __ocs_fmt_0__
     .reference = Referentie
diff --git a/locales/pl-PL/opencadstudio.ftl b/locales/pl-PL/opencadstudio.ftl
index 16d72a254..ee22b4fbd 100644
--- a/locales/pl-PL/opencadstudio.ftl
+++ b/locales/pl-PL/opencadstudio.ftl
@@ -850,6 +850,7 @@ common =
     .recent-documents = Najnowsze dokumenty
     .recent-files = Najnowsze pliki
     .recent-file-no-longer-exists = Ostatni plik już nie istnieje: __ocs_fmt_0__
+    .web-drawing-too-large = Ten rysunek ma __ocs_fmt_0__ MB, więcej niż wersja przeglądarkowa niezawodnie obsługuje. Otwórz go w aplikacji desktopowej.
     .red = Czerwony
     .redo-last-label = Wykonaj ponownie: __ocs_fmt_0__
     .reference = Odniesienie
diff --git a/locales/pt-BR/opencadstudio.ftl b/locales/pt-BR/opencadstudio.ftl
index 3ffec2a7b..b453aace1 100644
--- a/locales/pt-BR/opencadstudio.ftl
+++ b/locales/pt-BR/opencadstudio.ftl
@@ -851,6 +851,7 @@ common =
     .recent-documents = Documentos recentes
     .recent-files = Arquivos recentes
     .recent-file-no-longer-exists = O arquivo recente não existe mais: __ocs_fmt_0__
+    .web-drawing-too-large = Este desenho tem __ocs_fmt_0__ MB, mais do que a versão do navegador suporta com segurança. Abra-o no aplicativo de desktop.
     .red = Vermelho
     .redo-last-label = Refazer: __ocs_fmt_0__
     .reference = Referência
diff --git a/locales/ru-RU/opencadstudio.ftl b/locales/ru-RU/opencadstudio.ftl
index 3840440f1..2433d7d86 100644
--- a/locales/ru-RU/opencadstudio.ftl
+++ b/locales/ru-RU/opencadstudio.ftl
@@ -854,6 +854,7 @@ common =
     .recent-documents = Последние документы
     .recent-files = Недавно открытые файлы
     .recent-file-no-longer-exists = Файл больше не существует: __ocs_fmt_0__
+    .web-drawing-too-large = Этот чертёж занимает __ocs_fmt_0__ МБ — больше, чем браузерная версия надёжно обрабатывает. Откройте его в настольном приложении.
     .red = Красный
     .redo-last-label = Редо: __ocs_fmt_0__
     .reference = Ссылка
diff --git a/locales/tr-TR/opencadstudio.ftl b/locales/tr-TR/opencadstudio.ftl
index 2733014ca..96070e9ff 100644
--- a/locales/tr-TR/opencadstudio.ftl
+++ b/locales/tr-TR/opencadstudio.ftl
@@ -839,6 +839,7 @@ common =
     .recent-documents = Son Belgeler
     .recent-files = Son Dosyalar
     .recent-file-no-longer-exists = Son kullanılan dosya artık yok: __ocs_fmt_0__
+    .web-drawing-too-large = Bu çizim __ocs_fmt_0__ MB; tarayıcı sürümünün güvenle açabileceğinden büyük. Masaüstü uygulamasında açın.
     .red = Kırmızı
     .redo-last-label = Yinele: __ocs_fmt_0__
     .reference = Referans
diff --git a/locales/zh-CN/opencadstudio.ftl b/locales/zh-CN/opencadstudio.ftl
index 81edca569..0b92e850b 100644
--- a/locales/zh-CN/opencadstudio.ftl
+++ b/locales/zh-CN/opencadstudio.ftl
@@ -838,6 +838,7 @@ common =
     .recent-documents = 最近文档
     .recent-files = 最近的文件
     .recent-file-no-longer-exists = 最近的文件已不存在 : __ocs_fmt_0__
+    .web-drawing-too-large = 此图形为 __ocs_fmt_0__ MB，超出了浏览器版本可靠处理的范围。请在桌面应用中打开。
     .red = 红色
     .redo-last-label = 重做 : __ocs_fmt_0__
     .reference = 参考
diff --git a/locales/zh-TW/opencadstudio.ftl b/locales/zh-TW/opencadstudio.ftl
index b7941d3ed..694ceeb00 100644
--- a/locales/zh-TW/opencadstudio.ftl
+++ b/locales/zh-TW/opencadstudio.ftl
@@ -850,6 +850,7 @@ common =
     .recent-documents = 最近文檔
     .recent-files = 最近的檔案
     .recent-file-no-longer-exists = 最近的檔案已不存在 : __ocs_fmt_0__
+    .web-drawing-too-large = 此圖面為 __ocs_fmt_0__ MB，超出瀏覽器版本能穩定處理的範圍。請在桌面應用程式中開啟。
     .red = 紅色
     .redo-last-label = 重做 : __ocs_fmt_0__
     .reference = 參考
diff --git a/src/app/update/mod.rs b/src/app/update/mod.rs
index bcfb76142..cc0edcf37 100644
--- a/src/app/update/mod.rs
+++ b/src/app/update/mod.rs
@@ -1421,6 +1421,18 @@ impl OpenCADStudio {
                         self.queue_next_web_autosave_prompt();
                     }
                 }
+                // A browser tab has a few GB of memory at most; a very large
+                // drawing that fails here usually opens in the desktop app.
+                const WEB_LARGE_DRAWING: u64 = 150 * 1024 * 1024;
+                if outcome.result.is_err() && outcome.size_bytes > WEB_LARGE_DRAWING {
+                    self.command_line.push_info(
+                        crate::tf!(
+                            "This drawing is {} MB, more than the browser version handles reliably. Open it in the desktop app.",
+                            outcome.size_bytes / (1024 * 1024)
+                        )
+                        .as_ref(),
+                    );
+                }
                 if let Some(opening) = self.opening.as_mut() {
                     opening.name = outcome.name.clone();
                     opening.source_path = Some(std::path::PathBuf::from(&outcome.name));
diff --git a/src/locale_catalog.rs b/src/locale_catalog.rs
index 46a790cc3..aa0cb509b 100644
--- a/src/locale_catalog.rs
+++ b/src/locale_catalog.rs
@@ -2771,6 +2771,7 @@ pub(super) fn message_attribute(source: &str) -> Option<(&'static str, &'static
         "Recent Documents" => Some(("common", "recent-documents")),
         "Recent Files" => Some(("common", "recent-files")),
         "Recent file no longer exists: {}" => Some(("common", "recent-file-no-longer-exists")),
+        "This drawing is {} MB, more than the browser version handles reliably. Open it in the desktop app." => Some(("common", "web-drawing-too-large")),
         "Records" => Some(("properties", "records")),
         "Rectangle - Center" => Some(("draw", "rectangle-center")),
         "Rectangle - Rotated" => Some(("draw", "rectangle-rotated")),