diff --git a/imgsrc/srv/justify-center.svg b/imgsrc/srv/justify-center.svg
new file mode 100644
index 0000000000..2c20067e30
--- /dev/null
+++ b/imgsrc/srv/justify-center.svg
@@ -0,0 +1,5 @@
+<svg viewBox="0 0 128 128" height="128" width="128">
+  <g transform="translate(0,-924.36216)">
+    <path d="m 127,1024.3622 0,9 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -117,0 q -1.82812,0 -3.16406,-1.3359 Q 1,1035.1903 1,1033.3622 l 0,-9 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 117,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z m -27,-27.00004 0,9.00004 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -63,0 q -1.82812,0 -3.16406,-1.3359 Q 28,1008.1903 28,1006.3622 l 0,-9.00004 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 63,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z m 18,-27 0,9 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -99,0 q -1.82812,0 -3.16406,-1.3359 Q 10,981.19026 10,979.36216 l 0,-9 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 99,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z m -27,-27 0,9 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -45,0 q -1.82812,0 -3.16406,-1.3359 Q 37,954.19026 37,952.36216 l 0,-9 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 45,0 q 1.82813,0 3.16406,1.3359 Q 91,941.53406 91,943.36216 Z" />
+  </g>
+</svg>
diff --git a/imgsrc/srv/justify-full.svg b/imgsrc/srv/justify-full.svg
new file mode 100644
index 0000000000..5a4ac2e460
--- /dev/null
+++ b/imgsrc/srv/justify-full.svg
@@ -0,0 +1,5 @@
+<svg viewBox="0 0 128 128" height="128" width="128">
+  <g transform="translate(0,-924.36216)">
+    <path d="m 127,1024.3622 0,9 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -117,0 q -1.82812,0 -3.16406,-1.3359 Q 1,1035.1903 1,1033.3622 l 0,-9 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 117,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z m 0,-27.00004 0,9.00004 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -117,0 q -1.82812,0 -3.16406,-1.3359 Q 1,1008.1903 1,1006.3622 l 0,-9.00004 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 117,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z m 0,-27 0,9 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -117,0 q -1.82812,0 -3.16406,-1.3359 Q 1,981.19026 1,979.36216 l 0,-9 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 117,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z m 0,-27 0,9 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -117,0 q -1.82812,0 -3.16406,-1.3359 Q 1,954.19026 1,952.36216 l 0,-9 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 117,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z" />
+  </g>
+</svg>
diff --git a/imgsrc/srv/justify-left.svg b/imgsrc/srv/justify-left.svg
new file mode 100644
index 0000000000..78039f2b45
--- /dev/null
+++ b/imgsrc/srv/justify-left.svg
@@ -0,0 +1,5 @@
+<svg viewBox="0 0 128 128" height="128" width="128">
+  <g transform="translate(0,-924.36216)">
+    <path d="m 127,1024.3622 0,9 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -117,0 q -1.82812,0 -3.16406,-1.3359 Q 1,1035.1903 1,1033.3622 l 0,-9 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 117,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z m -27,-27.00004 0,9.00004 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -90,0 q -1.82812,0 -3.16406,-1.3359 Q 1,1008.1903 1,1006.3622 l 0,-9.00004 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 90,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z m 18,-27 0,9 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -108,0 q -1.82812,0 -3.16406,-1.3359 Q 1,981.19026 1,979.36216 l 0,-9 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 108,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z m -27,-27 0,9 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -81,0 q -1.82812,0 -3.16406,-1.3359 Q 1,954.19026 1,952.36216 l 0,-9 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 81,0 q 1.82813,0 3.16406,1.3359 Q 91,941.53406 91,943.36216 Z" />
+  </g>
+</svg>
diff --git a/imgsrc/srv/justify-right.svg b/imgsrc/srv/justify-right.svg
new file mode 100644
index 0000000000..713a1c9bad
--- /dev/null
+++ b/imgsrc/srv/justify-right.svg
@@ -0,0 +1,5 @@
+<svg viewBox="0 0 128 128" height="128" width="128">
+  <g transform="translate(0,-924.36216)">
+    <path d="m 127,1024.3622 0,9 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -117,0 q -1.82812,0 -3.16406,-1.3359 Q 1,1035.1903 1,1033.3622 l 0,-9 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 117,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z m 0,-27.00004 0,9.00004 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -90,0 q -1.82812,0 -3.16406,-1.3359 Q 28,1008.1903 28,1006.3622 l 0,-9.00004 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 90,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z m 0,-27 0,9 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -108,0 q -1.82812,0 -3.16406,-1.3359 Q 10,981.19026 10,979.36216 l 0,-9 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 108,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z m 0,-27 0,9 q 0,1.8281 -1.33594,3.1641 -1.33593,1.3359 -3.16406,1.3359 l -81,0 q -1.82812,0 -3.16406,-1.3359 Q 37,954.19026 37,952.36216 l 0,-9 q 0,-1.8281 1.33594,-3.1641 1.33594,-1.3359 3.16406,-1.3359 l 81,0 q 1.82813,0 3.16406,1.3359 1.33594,1.336 1.33594,3.1641 z" />
+  </g>
+</svg>
diff --git a/src/pyj/book_list/comments_editor.pyj b/src/pyj/book_list/comments_editor.pyj
index 77af68b34b..99afc3d1c3 100644
--- a/src/pyj/book_list/comments_editor.pyj
+++ b/src/pyj/book_list/comments_editor.pyj
@@ -157,6 +157,31 @@ def all_editor_actions():  # {{{
                 'execute': def (editor, activated):
                     editor.exec_command('outdent')
             },
+            'justify-left': {
+                'icon': 'justify-left',
+                'title': _('Align left'),
+                'execute': def (editor, activated):
+                    editor.exec_command('justifyLeft')
+            },
+            'justify-full': {
+                'icon': 'justify-full',
+                'title': _('Align justified'),
+                'execute': def (editor, activated):
+                    editor.exec_command('justifyFull')
+            },
+            'justify-center': {
+                'icon': 'justify-center',
+                'title': _('Align center'),
+                'execute': def (editor, activated):
+                    editor.exec_command('justifyCenter')
+            },
+            'justify-right': {
+                'icon': 'justify-right',
+                'title': _('Align right'),
+                'execute': def (editor, activated):
+                    editor.exec_command('justifyRight')
+            },
+
         }
     return all_editor_actions.ans
 # }}}
@@ -336,15 +361,16 @@ def create_comments_editor(container):
     acmap = all_editor_actions()
 
     def add(toolbar, ac_name):
-        if acmap[ac_name]:
-            add_action(toolbar, ac_name, acmap[ac_name], editor.id)
-        else:
-            toolbar.appendChild(E.div(class_='sep'))
+        if ac_name:
+            if acmap[ac_name]:
+                add_action(toolbar, ac_name, acmap[ac_name], editor.id)
+            else:
+                toolbar.appendChild(E.div(class_='sep'))
 
     for ac_name in 'undo redo select-all remove-format | bold italic underline strikethrough | hr superscript subscript format-block'.split(' '):
         add(toolbar1, ac_name)
 
-    for ac_name in 'ul ol indent outdent |'.split(' '):
+    for ac_name in 'ul ol indent outdent | justify-left justify-center justify-right justify-full |'.split(' '):
         add(toolbar2, ac_name)
 
     container.setAttribute('style', (container.getAttribute('style') or '') + ';display: flex; flex-direction: column; align-items: stretch')