diff --git a/FAQ.md b/FAQ.md
index 4ad78eeda6..3bca42ff8f 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -1864,6 +1864,15 @@ If you want to use preformatted text, like [ASCII art](https://en.wikipedia.org/
  </pre>
 ```
 
+If you want to resize an image, you could do it like this:
+
+```
+<img src="..." width="..." height="...">
+```
+
+The recipient of your message might not like large images in messages,
+so it is better to resize images with an image editor first.
+
 <br />
 
 <a name="faq58"></a>
diff --git a/app/src/main/java/eu/faircode/email/ActivitySignature.java b/app/src/main/java/eu/faircode/email/ActivitySignature.java
index 9350227ae6..bb2d72c35d 100644
--- a/app/src/main/java/eu/faircode/email/ActivitySignature.java
+++ b/app/src/main/java/eu/faircode/email/ActivitySignature.java
@@ -209,7 +209,11 @@ public class ActivitySignature extends ActivityBase {
 
     @Override
     public boolean onOptionsItemSelected(@NonNull MenuItem item) {
-        if (item.getItemId() == R.id.menu_edit_html) {
+        int itemId = item.getItemId();
+        if (itemId == R.id.menu_help) {
+            onMenuHelp();
+            return true;
+        } else if (itemId == R.id.menu_edit_html) {
             item.setChecked(!item.isChecked());
             html(item.isChecked());
             return true;
@@ -217,6 +221,10 @@ public class ActivitySignature extends ActivityBase {
         return super.onOptionsItemSelected(item);
     }
 
+    private void onMenuHelp() {
+        Helper.viewFAQ(this, 57);
+    }
+
     @Override
     protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
         super.onActivityResult(requestCode, resultCode, data);
diff --git a/app/src/main/res/menu/menu_signature.xml b/app/src/main/res/menu/menu_signature.xml
index b9cdde07aa..fd8cf6449c 100644
--- a/app/src/main/res/menu/menu_signature.xml
+++ b/app/src/main/res/menu/menu_signature.xml
@@ -1,6 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/menu_help"
+        android:icon="@drawable/twotone_help_24"
+        android:title="@string/title_info"
+        app:showAsAction="always" />
     <item
         android:id="@+id/menu_edit_html"
         android:checkable="true"