diff --git a/crates/engine/src/cmd/addons/document.rs b/crates/engine/src/cmd/addons/document.rs
index 04609d3e6..30548b80a 100644
--- a/crates/engine/src/cmd/addons/document.rs
+++ b/crates/engine/src/cmd/addons/document.rs
@@ -36,7 +36,7 @@ pub fn specs() -> Vec<CommandSpec> {
             "Export All Open Documents",
             ["Object", "Plug-ins", "Document Tools"],
             None,
-            "{folder, format?: vectorcraft|pdf|svg|svgz|ai|eps (default: pdf)} write a copy of every open document, in tab order, to `folder` as File › Save a Copy writes it, each named after its document (<name>.<ext>; -2, -3… added when that name is taken, so no file is replaced), one file each (images embedded, artboards together): every document keeps its path, title and modified state, and no undo step is made. A document that can't be written is listed in `failed` and the others are still written; the active document stays active → {files: [{title, path, warnings}], failed: [{title, error}], format}",
+            "{folder, format?: vectorcraft|pdf|svg|svgz|ai|eps (default: pdf)} write a copy of every open document, in tab order, to `folder` as File › Save a Copy writes it, each named after its document (<name>.<ext>; -2, -3… added when that name is taken, so no file is replaced), one self-contained file each with all of its art (images embedded or included, every artboard; no remembered save options apply): every document keeps its path, title and modified state, and no undo step is made. A document that can't be written is listed in `failed` and the others are still written; the active document stays active → {files: [{title, path, warnings}], failed: [{title, error}], format}",
             has_doc,
             export_all_open
         ),
@@ -98,6 +98,20 @@ fn save_timestamped_copy(s: &mut Session, p: &Value) -> Result<Value> {
     fileio::save_document(s, SaveMode::Copy, &json!({ "path": path, "format": format.id }))
 }
 
+/// The save options of every copy, given in full so that no document's remembered options (linked
+/// SVG images, a PDF page range, separate artboard files) apply: one self-contained file per
+/// document with all of its art. Each format reads only the options it has, and `range` is left
+/// out of SVG, where it would pick artboards over `useArtboards`.
+fn copy_options(format: &str) -> Value {
+    match format {
+        "svg" | "svgz" => json!({ "images": "embed", "useArtboards": false }),
+        "pdf" => json!({ "range": "all" }),
+        "eps" => json!({ "includeLinkedFiles": true, "useArtboards": false }),
+        "ai" | "ait" => json!({ "range": "all", "includeLinked": true, "separateArtboards": false }),
+        _ => json!({ "includeLinked": true, "separateArtboards": false }),
+    }
+}
+
 fn export_all_open(s: &mut Session, p: &Value) -> Result<Value> {
     const C: &str = "addon.document.exportAllOpen";
     let format = fileio::save_format(Some(str_param(p, "format").unwrap_or("pdf")), None).map_err(|e| bad(C, e))?;
@@ -117,10 +131,7 @@ fn export_all_open(s: &mut Session, p: &Value) -> Result<Value> {
             failed.push(json!({ "title": title, "error": "every numbered name for the copy is taken" }));
             continue;
         };
-        // One file per document: the remembered options of a document saved before in this format
-        // (linked SVG images, separate artboard files) would write others beside it. Each format
-        // reads only the options it has.
-        let options = json!({ "images": "embed", "separateArtboards": false });
+        let options = copy_options(format.id);
         match fileio::save_document(s, SaveMode::Copy, &json!({ "path": path, "format": format.id, "options": options })) {
             Ok(r) => {
                 written.push(path.clone());
diff --git a/crates/engine/src/cmd/addons/document/tests.rs b/crates/engine/src/cmd/addons/document/tests.rs
index e1b5d59bf..562a389e8 100644
--- a/crates/engine/src/cmd/addons/document/tests.rs
+++ b/crates/engine/src/cmd/addons/document/tests.rs
@@ -240,3 +240,39 @@ fn export_all_open_documents_writes_one_file_each() {
     assert!(std::fs::read_to_string(out.join("pic.svg")).unwrap().contains("data:image/png;base64,"), "the image is embedded");
     let _ = std::fs::remove_dir_all(&dir);
 }
+
+/// A PDF document last saved with a page range exports with every page, and an SVG document with
+/// two artboards exports as one SVG holding the art of both (#4920 review).
+#[test]
+fn export_all_open_documents_keeps_every_page_and_artboard() {
+    let dir = std::env::temp_dir().join(format!("vc-export-all-pages-{}", std::process::id()));
+    let _ = std::fs::remove_dir_all(&dir);
+    std::fs::create_dir_all(dir.join("out")).unwrap();
+    let mut s = Session::new();
+    s.execute("file.new", &json!({"width": 100, "height": 100, "artboards": 2, "name": "pages"})).unwrap();
+    s.execute("document.save", &json!({"path": dir.join("pages.pdf"), "format": "pdf", "options": {"range": "1"}})).unwrap();
+    let pages = |b: &[u8]| {
+        String::from_utf8_lossy(b).matches("/Type /Page\n").count()
+            + String::from_utf8_lossy(b).matches("/Type/Page/").count()
+            + String::from_utf8_lossy(b).matches("/Type /Page/").count()
+            + String::from_utf8_lossy(b).matches("/Type /Page ").count()
+    };
+    let first = pages(&std::fs::read(dir.join("pages.pdf")).unwrap());
+    let out = dir.join("out");
+    s.execute("addon.document.exportAllOpen", &json!({"folder": out, "format": "pdf"})).unwrap();
+    let copy = pages(&std::fs::read(out.join("pages.pdf")).unwrap());
+    assert!(copy > first, "the copy has every page: {first} saved, {copy} exported");
+    // SVG: one file with the art on both artboards.
+    let a = s.doc().unwrap().doc.artboards[1].rect;
+    s.execute("shape.rectangle", &json!({"x": a.x0 + 10.0, "y": a.y0 + 10.0, "width": 20, "height": 20})).unwrap();
+    s.execute("addon.document.exportAllOpen", &json!({"folder": out, "format": "svg"})).unwrap();
+    let svgs: Vec<String> =
+        std::fs::read_dir(&out).unwrap().map(|e| e.unwrap().file_name().to_string_lossy().into_owned()).filter(|n| n.ends_with(".svg")).collect();
+    assert_eq!(svgs, ["pages.svg"]);
+    let svg = std::fs::read_to_string(out.join("pages.svg")).unwrap();
+    // Not the first artboard alone (its 100 × 100 box at the origin): the art's own bounds.
+    let view = svg.split("viewBox=\"").nth(1).and_then(|v| v.split('"').next()).unwrap();
+    let w: f64 = view.split_whitespace().nth(2).unwrap().parse().unwrap();
+    assert!(w > 19.0 && w < 30.0, "the SVG shows the art (the square on the second artboard), not the first artboard: viewBox {view}");
+    let _ = std::fs::remove_dir_all(&dir);
+}