diff --git a/client/index.html b/client/index.html
index 22ab89a..bacbde6 100644
--- a/client/index.html
+++ b/client/index.html
@@ -78,13 +78,13 @@
     <div class="toolbar_right">
     <div class="group" id="host_tools">
       <button id="page_menu_button" type="button" aria-haspopup="menu" aria-expanded="false"
-              data-help="The page and the view: fit the page to the window, show it at A4 scale, make it larger or smaller, and whether it grows as you write.">Page</button>
+              data-help="The page and the view: fit the page to the window, show it at its normal scale, make it larger or smaller, and whether it grows as you write.">Page</button>
       <div id="page_menu" class="popup menu" role="menu" hidden>
         <div class="menu_title">Change the display of the page</div>
         <button id="zoom_fit" type="button" class="menu_item" role="menuitem"
                 data-help="Show the whole page in the window. Pressed by the host, it does so on every screen. Ctrl (Command on a Mac) with the scroll wheel, or with a pen stroke up or down, zooms about the pointer.">Fit to the window</button>
         <button id="zoom_sheet" type="button" class="menu_item" role="menuitem"
-                data-help="Show the page at the scale a new page has: a full A4 page filling the window. A shrunk page is then seen at its own size rather than enlarged. Pressed by the host, it does so on every screen.">A4 scale</button>
+                data-help="Show the page at the scale a new page has, one full page filling the window. A shrunk page is then seen at its own size rather than enlarged. Pressed by the host, it does so on every screen.">Normal scale</button>
         <hr>
         <div class="menu_title">Change the size of the page</div>
         <button id="zoom_expand" type="button" class="menu_item" role="menuitem" hidden
diff --git a/client/js/main.js b/client/js/main.js
index ffe0732..4d50636 100644
--- a/client/js/main.js
+++ b/client/js/main.js
@@ -547,7 +547,7 @@ async function enterSession(invitationText, name, notebook) {
         writer.changed();
       },
       onViewCommand: (command) => {
-        log(`The host's view: ${command === 'fit' ? 'Fit' : 'A4'}`);
+        log(`The host's view: ${command === 'fit' ? 'Fit' : 'Normal scale'}`);
         if (command === 'fit') renderer.fit();
         else renderer.sheetScale();
       },
@@ -1050,7 +1050,7 @@ async function enterSession(invitationText, name, notebook) {
     textEditor?.layout();
     viewChanged();
   };
-  // The host's Fit and A4 reach everyone (Andy, 2026-10-08); a guest's
+  // The host's Fit and Normal scale ("A4" until 2026-10-14) reach everyone (Andy, 2026-10-08); a guest's
   // are the guest's own.
   // The page and view commands live in the Page menu (Andy, 2026-10-14:
   // seldom used, and the one row is precious); Help is a note for now.
diff --git a/client/js/session.js b/client/js/session.js
index fdc2005..6bd0bed 100644
--- a/client/js/session.js
+++ b/client/js/session.js
@@ -66,7 +66,7 @@ import { trimTrailingBlankLines } from './text_layout.js';
  * @property {() => void} onPermissionsChanged
  *     Who may start pages changed.
  * @property {(command: 'fit' | 'sheet') => void} onViewCommand
- *     The host pressed "Fit" or "A4": everyone's view follows (Andy,
+ *     The host pressed "Fit" or "Normal scale": everyone's view follows (Andy,
  *     2026-10-08), each in their own window.
  * @property {() => void} onParticipantsChanged
  * @property {(status: 'connecting' | 'connected' | 'failed', detail?: string) => void} onStatus
@@ -244,7 +244,7 @@ export class Session {
   }
 
   /**
-   * The host's "Fit" or "A4" goes to everyone.  Only the host's does.
+   * The host's "Fit" or "Normal scale" goes to everyone.  Only the host's does.
    * @param {'fit' | 'sheet'} command
    */
   sendViewCommand(command) {
diff --git a/tests/test_end_to_end.py b/tests/test_end_to_end.py
index 9400302..e5f854c 100644
--- a/tests/test_end_to_end.py
+++ b/tests/test_end_to_end.py
@@ -1512,7 +1512,7 @@ class EndToEndTest(unittest.TestCase):
         self.assertGreater(menu[1], button[3])
         self.assertLess(menu[2], firefox.run("return window.innerWidth;"))
         items = firefox.run("return [...document.querySelectorAll('#page_menu .menu_item')].filter((e) => !e.hidden).map((e) => e.textContent.trim());")
-        self.assertEqual(items, ["Fit to the window", "A4 scale", "Expand to the window",
+        self.assertEqual(items, ["Fit to the window", "Normal scale", "Expand to the window",
                                  "Shrink to the contents", "Extend the page while writing"])
         # Two grey titles, over the first two sections, in the muted colour.
         self.assertEqual(firefox.run("return [...document.querySelectorAll('#page_menu .menu_title')].map((e) => e.textContent);"),
@@ -1958,7 +1958,7 @@ class EndToEndTest(unittest.TestCase):
         self.assertEqual(doubled["strokes"], before["strokes"])
         firefox.run(CTRL_DRAG, 0.5, 0.3, 0.5, 0.3, 104)
         self.assertAlmostEqual(zoom()["width"], before["width"], delta=2)
-        # The host's Fit and A4 reach the guest, who then fits the page to
+        # The host's Fit and Normal scale reach the guest, who then fits the page to
         # the guest's own window; the guest's own Fit stays the guest's.
         firefox.switch_to(student_tab)
         firefox.run("""
@@ -2048,7 +2048,7 @@ class EndToEndTest(unittest.TestCase):
                              lambda text: f'data-base="{sheet["width"]} {sheet["height"]} {sheet["left"]} {sheet["top"]}"' in text,
                              "the shrunk sheet in the student's file")
         firefox.switch_to(teacher_tab)
-        # "A4" shows the shrunk page at the scale a new page has: a blank
+        # "Normal scale" ("A4" until 2026-10-14) shows the shrunk page at the scale a new page has: a blank
         # sheet fitted to the window, so the page is smaller than it.
         firefox.run("document.getElementById('zoom_fit').click();")
         fitted_scale = firefox.run("return window.kokkoja.renderer.cssPixelsPerUnit;")