docs(user): mention changes to PDF

docs/User Guide/!!!meta.json

@@ -10812,6 +10812,13 @@
                                             "value": "CoFPLs3dRlXc",
                                             "isInheritable": false,
                                             "position": 70
+                                        },
+                                        {
+                                            "type": "relation",
+                                            "name": "internalLink",
+                                            "value": "KC1HB96bqqHX",
+                                            "isInheritable": false,
+                                            "position": 80
                                         }
                                     ],
                                     "format": "markdown",

docs/User Guide/User Guide/Note Types/File/PDFs.md

@@ -5,6 +5,15 @@ PDFs file can be uploaded in Trilium, where they will be displayed without the n
 
 Since v0.102.0, PDFs will be rendered using Trilium's built-in PDF viewer, which is a customization of [Mozilla's PDF.js viewer](https://mozilla.github.io/pdf.js/) (also built-in in the Mozilla Firefox browser). Versions prior to that render PDFs using the browser's default PDF viewer.
 
+## Features
+
+*   The last page viewed and scroll position is maintained in between restarts or note navigations.
+*   Annotations (text, highlights) as well as comments. These are saved automatically.
+*   Forms can be filled.
+*   Can be printed or downloaded.
+*   Can be saved as a [template](../../Advanced%20Usage/Templates.md) and the content of the PDF will be copied over to the new note. This is especially useful in combination with annotations or filled forms.
+*   Integrates with the sidebar in the <a class="reference-link" href="../../Basic%20Concepts%20and%20Features/UI%20Elements/New%20Layout.md">New Layout</a>, by displaying the list of pages with thumbnails, table of contents and a listing of the annotations.
+
 ## Storing last position and settings
 
 For every PDF, Trilium will remember the following information:
@@ -22,7 +31,11 @@ This makes it useful when reading large documents since the position is remember
 
 Since v0.102.0 it's possible to annotate PDFs. To do so, look for the annotation buttons on the right side of the PDF toolbar (<img src="1_PDFs_image.png" width="120" height="32">).
 
-Since v0.103.0, annotations are disabled if the note is marked as <a class="reference-link" href="../../Basic%20Concepts%20and%20Features/Notes/Read-Only%20Notes.md">Read-Only Notes</a>.
+Since v0.103.0:
+
+*   Annotations are disabled if the note is marked as <a class="reference-link" href="../../Basic%20Concepts%20and%20Features/Notes/Read-Only%20Notes.md">Read-Only Notes</a>.
+*   Comments can also be added, which is similar to highlights but also attach a text.
+*   The <a class="reference-link" href="../../Basic%20Concepts%20and%20Features/UI%20Elements/Right%20Sidebar.md">Right Sidebar</a> also displays a list of annotations (highlights, comments), but only in the <a class="reference-link" href="../../Basic%20Concepts%20and%20Features/UI%20Elements/New%20Layout.md">New Layout</a>.
 
 ### Supported annotations
 
@@ -73,6 +86,9 @@ When a PDF file is opened in Trilium the <a class="reference-link" href="../../
 *   Pages
     *   A preview of all the pages with a small thumbnail.
     *   Clicking on a page will automatically navigate to that page.
+*   Annotations
+    *   Highlight and comment annotations are listed here.
+    *   For the old layout, this feature is not directly available, however there is a listing of comments directly in the PDF toolbar.
 *   Attachments
     *   If the PDF has its own attachments (not to be confused with Trilium's <a class="reference-link" href="../../Basic%20Concepts%20and%20Features/Notes/Attachments.md">Attachments</a>), they will be displayed in a list.
     *   Some information such as the name and size of the attachment are displayed.