diff --git a/src/public/app/dialogs/options/other.js b/src/public/app/dialogs/options/other.js
index 213075252..aa5458f41 100644
--- a/src/public/app/dialogs/options/other.js
+++ b/src/public/app/dialogs/options/other.js
@@ -80,6 +80,22 @@ const TPL = `
         <label for="note-revision-snapshot-time-interval-in-seconds">Note revision snapshot time interval (in seconds)</label>
         <input class="form-control" id="note-revision-snapshot-time-interval-in-seconds" type="number">
     </div>
+</div>
+
+<div>
+    <h4>Automatic readonly size</h4>
+
+    <p>Automatic readonly note size is the size after which notes will be readonly if automatic readonly is enabled.</p>
+
+    <div class="form-group">
+        <label for="automatic-readonly-size">Automatic readonly size (text notes)</label>
+        <input class="form-control" id="automatic-readonly-size-text" type="number">
+    </div>
+
+    <div class="form-group">
+        <label for="automatic-readonly-size">Automatic readonly size (code notes)</label>
+        <input class="form-control" id="automatic-readonly-size-code" type="number">
+    </div>
 </div>`;
 
 export default class ProtectedSessionOptions {
@@ -167,6 +183,24 @@ export default class ProtectedSessionOptions {
 
             return false;
         });
+
+        this.$autoReadonlySize = $("#automatic-readonly-size-text");
+
+        this.$autoReadonlySize.on('change', () => {
+            const opts = { 'autoReadonlySize': this.$autoReadonlySize.val() };
+            server.put('options', opts).then(() => toastService.showMessage("Options change have been saved."));
+
+            return false;
+        });
+
+        this.$autoCodeReadonlySize = $("#automatic-readonly-size-code");
+
+        this.$autoCodeReadonlySize.on('change', () => {
+            const opts = { 'autoCodeReadonlySize': this.$autoReadonlySize.val() };
+            server.put('options', opts).then(() => toastService.showMessage("Options change have been saved."));
+
+            return false;
+        });
     }
 
     optionsLoaded(options) {
@@ -179,5 +213,8 @@ export default class ProtectedSessionOptions {
 
         this.$imageMaxWidthHeight.val(options['imageMaxWidthHeight']);
         this.$imageJpegQuality.val(options['imageJpegQuality']);
+
+        this.$autoReadonlySize.val(options['autoReadonlySize']);
+        this.$autoCodeReadonlySize.val(options['autoCodeReadonlySize']);
     }
 }
diff --git a/src/public/app/services/note_context.js b/src/public/app/services/note_context.js
index f69712bb1..c5c0de959 100644
--- a/src/public/app/services/note_context.js
+++ b/src/public/app/services/note_context.js
@@ -6,6 +6,7 @@ import treeService from "./tree.js";
 import Component from "../widgets/component.js";
 import froca from "./froca.js";
 import hoistedNoteService from "./hoisted_note.js";
+import options from "./options.js";
 
 class NoteContext extends Component {
     /**
@@ -192,7 +193,9 @@ class NoteContext extends Component {
 
         const noteComplement = await this.getNoteComplement();
 
-        const SIZE_LIMIT = this.note.type === 'text' ? 10000 : 30000;
+        const SIZE_LIMIT = this.note.type === 'text' ?
+            options.getInt('autoReadonlySize')
+                : options.getInt('autoCodeReadonlySize');
 
         return noteComplement.content
             && noteComplement.content.length > SIZE_LIMIT
diff --git a/src/routes/api/options.js b/src/routes/api/options.js
index 46a612636..8f1463267 100644
--- a/src/routes/api/options.js
+++ b/src/routes/api/options.js
@@ -42,7 +42,9 @@ const ALLOWED_OPTIONS = new Set([
     'promotedAttributesExpanded',
     'similarNotesExpanded',
     'headingStyle',
-    'autoCollapseNoteTree'
+    'autoCollapseNoteTree',
+    'autoReadonlySize',
+    'autoCodeReadonlySize'
 ]);
 
 function getOptions() {
diff --git a/src/services/options_init.js b/src/services/options_init.js
index d0e2cd203..81913fabe 100644
--- a/src/services/options_init.js
+++ b/src/services/options_init.js
@@ -87,6 +87,8 @@ const defaultOptions = [
     { name: 'debugModeEnabled', value: 'false', isSynced: false },
     { name: 'headingStyle', value: 'underline', isSynced: true },
     { name: 'autoCollapseNoteTree', value: 'true', isSynced: true },
+    { name: 'autoReadonlySize', value: '10000', isSynced: false },
+    { name: 'autoCodeReadonlySize', value: '30000', isSynced: false },
 ];
 
 function initStartupOptions() {