## 15.4 Document Viewers 

Some new document formats have recently gained popularity. The standard viewers they require may not be available in the base system. We will see how to install them in this section.

This section covers these applications:

[[!table  data="""
| Application Name | Resources Needed | Installation from Ports | Major Dependencies 
  **Acrobat Reader®**  | light | light | Linux Binary Compatibility 
  **gv**  | light | light | ***'Xaw3d***' 
  **Xpdf**  | light | light |  **FreeType**  
  **GQview**  | light | light |  **Gtk+**  or  **GNOME**  |
"""]]
### 15.4.1 Acrobat Reader® 

Many documents are now distributed as PDF files, which stands for ***Portable Document Format***. One of the recommended viewers for these types of files is  **Acrobat Reader** , released by Adobe for Linux. As DragonFly can run Linux binaries, it is also available for DragonFly.

To install the  **Acrobat Reader 5**  package, do:

    
    # pkg_add acroread5


As usual, if the package is not available or you want the latest version, you can use the ports collection as well:

    
    # cd /usr/ports/print/acroread5
    # make install clean


 **Note:**  **Acrobat Reader**  is available in several different versions. At this time of writing, there are: [`print/acroread`](http://pkgsrc.se/print/acroread) (version 3.0.2), [`print/acroread4`](http://pkgsrc.se/print/acroread4) (version 4.0.5), and [`print/acroread5`](http://pkgsrc.se/print/acroread5) (version 5.0.6). They may not all have been packaged for your version of DragonFly. The ports collection will always contain the latest versions.

### 15.4.2 gv 

 **gv**  is a PostScript® and PDF viewer. It is originally based on  **ghostview**  but it has a nicer look thanks to the ***'Xaw3d ** library. It is fast and its interface is clean.** gv***' has many features like orientation, paper size, scale, or antialias. Almost any operation can be done either from the keyboard or the mouse.

To install  **gv**  as a package, do:

    
    # pkg_add gv


If you cannot get the package, you can use the ports collection:

    
    # cd /usr/ports/print/gv
    # make install clean


### 15.4.3 Xpdf 

If you want a small DragonFly PDF viewer,  **Xpdf**  is a light-weight and efficient viewer. It requires very few resources and is very stable. It uses the standard X fonts and does not require  **Motif®**  or any other X toolkit.

To install the  **Xpdf**  package, issue this command:

    
    # pkg_add xpdf


If the package is not available or you prefer to use the ports collection, do:

    
    # cd /usr/ports/graphics/xpdf
    # make install clean


Once the installation is complete, you can launch  **Xpdf**  and use the right mouse button to activate the menu.

### 15.4.4 GQview 

 **GQview**  is an image manager. You can view a file with a single click, launch an external editor, get thumbnail previews, and much more. It also features a slideshow mode and some basic file operations. You can manage image collections and easily find duplicates.  **GQview**  can do full screen viewing and supports internationalization.

If you want to install the  **GQview**  package, do:

    
    # pkg_add gqview


If the package is not available or you prefer to use the ports collection, do:

    
    # cd /usr/ports/graphics/gqview
    # make install clean




CategoryHandbook
CategoryHandbook-desktop