docs: added example of viewer that supports annots.

diff --git a/help/C/annotations-save.page b/help/C/annotations-save.page
index d3def6d1872d55b0e4457db7167801f38c66a827..54077a29b0b72b5b7d783e5a0d9f508b38002ad3 100644 (file)
--- a/help/C/annotations-save.page
+++ b/help/C/annotations-save.page
@@ -31,4 +31,8 @@
      </p>
     </item>
    </steps>
+   <p>
+   Annotations are added according to the PDF specification. Therefore, most PDF readers should be able to read them. <app>Okular</app> Document Viewer does not support them. Adobe Reader is known to work.
+   </p>
+
 </page>