Chapter 2.2.6 qpdfview
======================

qpdfview is the default pdf viewer for Lubuntu.

Features:
 - tabs
 - presentation mode
 - zoom to entire page/ page width
 - rotating pages
 - outline, properties, thumbnail, and bookmark docks
 - printing support
 - annotation and highlighting 
 - bookmarks
 - customizable keyboard shortcuts

Usage
------
To open a pdf file use :menuselection:`File --> Open` from the menu or Ctrl + O on the keyboard. If you have a pdf open use :menuselection:`File --> Open` in new tab from the menu, click the Open in new tab button or press Ctrl + T. To refresh a pdf click the Refresh button or press F5 just like most web browsers. To switch between tabs on the keyboard you can press control control +tab to go the next tab or control shift tab to cycle through your tabs in the opposite direction. At the bottom of the tab menu will be a list of all your tabs you have open with the title of each document.   

If you want to view a particular page select the box (e.g. page 1/3) and tpye the page number (e.g. page 3/3). To move to the previous and next page use the left and right arrow buttons respectively. There are numerous zoom option, including percentage, page width, page size, continous, and multiple pages. Another way to jump to a particular page is to press control + j or :menuselection:`Edit --> Jump to Page`. To go back to page which you have just come from press control + enter or :menuselection:`Edit --> Jump backward`. To jump forward a page press control + shift + enter or :menuselection:`Edit --> Jump Forward` 

qpdfview also includes some very useful docks. To view the outline dock, in the menu select :menuselection:`View --> Docks --> Outline (make sure the button is checked)` or press F6 on the keyboard. It should appear on the left hand side of the pdf with collapsable sections. This is useful in navigating large pdfs. To see a thumbnail of each page :menuselection:`View --> Dock --> Thumbnails` or press f8 to view a thumbnial of each page of the pdf file. If you want to close one of these docks press the X button on the dock to close it.  

To search through your pdf file you can press control + f or from the menu :menuselection:`edit --> search`. You will get taken to the results and will appear highligheted in yellow to see through the results you can press the down arrow to see results farther in the document and press the up arrow to see results towards the start of the document.

To make qpdfview fullscreen you can press f11. To enter presentation mode you can press f12 wihch is makes the content of the pdf take up the fullscreen and gives you no menubars. To exit presentation mode you can press f12 again. To advance to the next page in the presentation press the spacebar or the right arrow. To go back a page in presentation press the left arrow. 

If you have a particularly long pdf file you might want to make a bookmark to find a specific thing easily. To create a bookmark press control +B or  :menuselection:`Bookmarks -->  Add Bookmark` and give the bookmark a memorable title and description so you can find it in this document again easily. If you later want to remove the bookmark go :menuselection:`bookmarks --> remove bookmark` or press control+ shift+ B. 

To jump to the start of a pdf file press the home key or :menuselection:`Edit --> First Page`. To jump to the last page of a pdf file press the end key or :menuselection:`Edit --> Last Page`.  

Screenshot
----------
.. image:: qpdfview.png

Version
-------
Lubuntu ships with version 0.4.17 of qpdfview.

How to launch
-------------
To launch qpdfview go to the Menu :menuselection:`Office --> qpdfview` or run  

.. code:: 

   qpdfview 

from the command line.