To add your own settings to qpdfview you can get to a settings window with :menuselection:`Edit --> Settings`. The checkbox for open url allows you to turn on or off Opening URL within within qpdfview. The autorefresh checkbox relaods the pdf whenever the file changes which is useful if you are authoring pdf files. If you want to scroll once to go to an entire page check the :guilabel:`minimal scrolling` checkbox. To change the color of highlights tpye a hex number for a color or select one from the drop down menu by name.
If you want to reset these settings to the defaults is to press the :guilabel:`defaults` button. If you just want defaults on the current tab you can press the :guilabel:`defaults on current tab` button. If you want to return to viewing your pdf with the same settings press the :guilabel:`OK` button. If you wish to discard your changes press the :guilabel:`cancel` button.
If you want to reset these settings to the defaults is to press the :guilabel:`Defaults` button. If you just want defaults on the current tab you can press the :guilabel:`Defaults on current tab` button. If you want to return to viewing your pdf with the same settings press the :guilabel:`OK` button. If you wish to discard your changes press the :guilabel:`Cancel` button.
To deal with settings on graphics press press on the :guilabel:`Graphics` tab. The settings for paper color will has a drop down menu for previewing what it is like printing on colored paper. The checkbox :guilabel:`Prefetch` will preload pages not directly viewed by the pdf viewer not directly on the screen however this will use more resources. The drop down for :guilabel:`Cache size` will increase laoding speed but will use more resources. The :guilabel:`Prefetch` checkbox loads pages before you view them. The :guilabel:`Prefetch distance` tells you how many pages away from where you are to load. The field for :guilabel:`Presentation background color` sets the color of the background for presentations. The :guilabel:`Cache size` increases the size of the cache which will apply more system resorouces to run heavy pdfs like hundred of pages of full color artwork.
