To customize the bookmarks behavior, click the Options drop-down button in the Bookmarks panel, as shown below.

Expand Current Bookmark
Shows all lower-level bookmarks in the Bookmarks panel.

Collapse Top-Level Bookmarks
Collapses nested bookmarks.

Text Size
Sets the text size of nodes located in the PDF navigation pane to Small, Medium or Large.

Go to Bookmark
Goes to a bookmark.

Print Page(s)
Prints only pages to which selected bookmarks are linked in the document.

Print Section(s)
Prints a document section corresponding to selected bookmarks.

Wrap Long Bookmarks
Wraps long lines in the outline node text if the option is checked. If the Wrap Long Bookmarks option is unchecked, shows the outline node text unwrapped in the PDF Viewer.



Bookmarks (outlines) are used to navigate quickly from one part of a document to another. The PDF Viewer can show bookmarks on the navigation pane for a PDF document that contains them.

Click on a bookmark to display a page linked to the bookmark in the Viewer. Bookmarks can also open web pages.


Bookmarks are displayed in a hierarchical tree providing a convenient document overview. They can show or hide the document hierarchy in the navigation pane.

To open (or close) a bookmark item, click it with the mouse.

After the bookmark item is open, you can see its children in the pane.

Viewing Document Properties


To view information related to the currently opened document, invoke the context menu by right-clicking this document and selecting Document properties… item.


The dialog displaying the standard set of the PDF file properties is invoked.

Selecting and Copying


The PDF Viewer provides for selecting and copying text from the selectable document to the clipboard. Note that only plain text copying is supported.

To enable the selection mode, invoke the context menu and choose the Select Tool item. This mode is active by default.

To select all the text in a document for copying, invoke the context menu and choose the Select All command, or press Ctrl+A.


To select all the text in a document for copying, invoke the context menu and choose the Select All command, or press Ctrl+A.

Use a Zoom Factor


To zoom to a specific zoom factor, click the Zoom dropdown list button. The zoom list will be invoked.

Choose the percentage value of the zoom factor or one of the following zoom factor presets.

Actual Size
Sets the document zoom factor value to 100%.

Zoom to Page Level
Sets the document zoom factor value to fit the entire page height.

Fit to Width
Sets the document zoom factor value to fit the entire page width.

Fit to Visible
The document zoom factor is calculated to fit the actual content of a page (if possible).

Zoom In and Out


Use buttons from the Zoom button group of the PDF Viewer tab.

To zoom in a document, click the Zoom In button on the toolbar, or press Ctrl+Plus sign.

To zoom out of a document, click the Zoom Out button on the toolbar, or press Ctrl+Minus sign.

To zoom in or out of a document, you can also hold down Ctrl and rotate the mouse wheel.

Rotate the Document

To rotate a document, use the following commands.


Rotates the document clockwise through 90 degrees.

To perform this command, right-click the viewed document, choose the Rotate Clockwise item, or press Ctrl + Shift + Add.

Rotates the document counterclockwise through 90 degrees.

To do this, invoke the context menu by right-clicking the document, choose the Rotate Counterclockwise item, or press Ctrl + Shift + Subtract.

Search for Specific Text


To search for a specific text within a document, click the Find button on the toolbar.


Otherwise, to invoke the Find dialog, right-click the document and select the Find item in the context menu, or press Ctrl+F.


In this dialog, you can input the text to find, and specify whether to match case or the whole word during the search. Click the Previous and Next buttons to set the search direction.

Between Views


To switch between viewed pages in the document quickly, right-click this document and select the Previous View or Next View item in the invoked context menu.

The pages you viewed are shown in the reverse order in which you viewed them.

Alternatively, press Alt+Left or Alt+Right.

Using the Hand Tool


The Hand Tool enables you to scroll content by dragging the document instead of using scrollbars.

To activate the Hand Tool, right-click the viewing document and select the Hand Tool item in the context menu.