Apply suggestions from code review

Co-authored-by: DirkPieterse <[email protected]>

Author: geumjaLee

interface-elements-for-desktop/articles/pdf-viewer.md

@@ -7,7 +7,7 @@ legacyId: 17451
 
 This section describes the **PDF Viewer** capabilities.
 
-The PDF Viewer is used to display PDF files and supports various document content such as text, images, vector graphics, etc.
+The PDF Viewer can display PDF files with different document content such as text, images, vector graphics, etc.
 
 ![pdf-viewer-control-windows-forms](../images/img19650.jpg)
 

interface-elements-for-desktop/articles/pdf-viewer/annotations.md

@@ -1,14 +1,14 @@
 # Annotations
 
-When reviewing a document, you often need to draw attention to some important text the author can change later. You can use annotation to this purpose.
+You can use annotations to highlight important text the author should change, for example, when you review a document.
 
 The PDF Viewer allows you to create text annotations (sticky notes) and text markup annotations (text highlights). All document annotations are displayed in the **Comments** panel.
 
 ![image](../../images/pdf-viewer-comments-pane.png)
 
 ## Create Annotations
 
-Use commands on the **Comment** ribbon page to create text markup annotations and sticky notes. Enable a selection tool in the **Text** group and select the text that should have an annotation. Click **Sticky Note** to place the sticky note in a document.
+Use commands on the **Comment** ribbon page to create text markup annotations and sticky notes. Enable the selection tool in the **Text** group and select the text that should have an annotation. Click **Sticky Note** to place the sticky note in a document.
 
 ![image](../../images/comment-toolbar.png)
 
@@ -26,7 +26,7 @@ Double-click the annotation in the **Comments** panel to edit its contents.
 
 ![image](../../images/pdf-viewer-navigation-pane-comments-edit.png)
 
-Right-click the annotation in the document or in the **Comments** navigation page and select **Properties...** to invoke the **Annotation Properties** dialog.
+Right-click the annotation in the document or **Comments** navigation page and select **Properties...** to invoke the **Annotation Properties** dialog.
 
 ![image](../../images/pdf-viewer-pop-up-comment.png)
 
@@ -38,7 +38,7 @@ Right-click the annotation in the document or in the **Comments** navigation pag
 
 You can use the **Comments** navigation pane to add replies and set review statuses for the annotations.
 
-Select an annotation on the pane, enter text in the invoked editor and click **Reply** to add the reply to the annotation.
+Select an annotation on the pane, enter text in the invoked editor, and click **Reply** to add the reply to the annotation.
 
 ![image](../../images/pdf-viewer-comments-pane-reply.png)
 
@@ -54,14 +54,14 @@ Click the **Sort** button on the **Comments** navigation page to sort annotation
 
 ![image](../../images/pdf-viewer-pop-up-comment-sort.png)
 
-Click the **Filter** button to apply the filter. This filter will be applied to the annotations in the pane and in the document.
+Click the **Filter** button to apply the filter. This filter is applied to the annotations in the pane and in the document.
 
 ![image](../../images/pdf-viewer-pop-up-comment-filter.png)
 
-Use the **Search comments..** field to show annotations that contains the required text.
+Use the **Search comments..** field to show annotations that contain the search text.
 
 ## Remove Annotations
 
-Right-click an annotation in document or in the **Comments** navigation pane and select **Delete** in the context menu to remove the annotation. You can also select an annotation and press the **Delete** key.
+Right-click an annotation in the document or **Comments** navigation pane and select **Delete** in the context menu to remove the annotation. You can also select an annotation and press the **Delete** key.
 
 ![image](../../images/pdf-viewer-delete-markup-annotation.png)

interface-elements-for-desktop/articles/pdf-viewer/file-attachment.md

@@ -5,15 +5,15 @@ legacyId: 115330
 ---
 # File Attachments
 
-This document describes actions that can be performed on attachments in the PDF Viewer.
+This document describes the available actions for attachments in the PDF Viewer.
 
 An attachment is a file that is attached to a PDF document. The PDF Viewer shows file attachments in the **Attachments** panel of the navigation pane.
 
 ![Attachment](../../images/img121136.png)
 
 ## Open an Attachment
 
-To open a file attachment for viewing, you need an application which supports the corresponding file format to be installed in your computer. To view an attachment, do one of the following.
+To open certain file attachments, you need an application that can read the corresponding file format. To view an attachment, do one of the following:
 
 * double click the attached file;