1. Visit Foxit Download page at https://www.foxit.com/downloads/.
2. Select and download the files or add-ons you want to update. 
3. For an add-on in FZIP format, click Help > Plug-in Management > click Install Plugin in the pop-up About Plug-in Management dialog box to install it. For an add-on in MSI format, double-click it to install it.

1. Choose File > Preferences > Updater.
2. Check the appropriate option according to your requirements.
   • Automatically install updates: Foxit PDF Editor regularly checks for updates and downloads them automatically when there are available updates.

You can check for updates yourself anytime by the following steps: 

1. Choose Help > About Foxit PDF Editor > click Check for Update… in the pop-up window.
2. In the pop-up dialog box, select updates from the column on the left, and then click Download and Install.

Foxit PDF Editor provides two licensing models: perpetual licensing and subscription licensing. The former allows users to use Foxit PDF Editor without expiration dates, while the latter enables users to pay for a monthly/yearly usage fee, with full features available for both. 

To purchase Foxit PDF Editor, please do either of the following:

Foxit PDF Editor provides separate add-ons for you to download on demand. These add-ons fall into critical add-ons and advanced add-ons. Most of add-ons, including JPEG2000/JBIG Decoder, Spell Checker and Firefox Plugins, have been integrated into Foxit PDF Editor package, so users don’t need to install them again after the installation of Foxit PDF Editor.

Please do one of the following:

You can deactivate Foxit PDF Editor on one machine to activate it on another device. To deactivate Foxit PDF Editor, follow these steps: 

After launching Foxit PDF Editor, the activation wizard pops up. If you do not have a license, click Buy Now to purchase Foxit PDF Editor from the Foxit website. If you have already purchased a license for Foxit PDF Editor, do either of the following to activate Foxit PDF Editor. 

You can also use the command-line to install the application:

msiexec /Option <Required Parameter> [Optional Parameter] [PROPERTY=PropertyValue]

For more detailed information on msiexec.exe, as well as required and optional parameters, type “msiexec” in the command line or visit Microsoft TechNet Help Center.

Public Properties of the Foxit PDF Editor MSI Installation Package.

Foxit PDF Editor installation properties supplement the standard MSI public properties to give administrators greater control over the installation of the application.

You can use the command-line to install the application:

<The full path to the installer> [Optional Parameter] [PROPERTY=PropertyValue]

The Foxit PDF Editor properties are:

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