By default, the free version of Foxit Reader has six ads. In earlier versions of Foxit, you could disable the ads simply by clicking on each one. This practice no longer works but you can prevent them from appearing again by creating and executing a simple reg file.
1. Open Notepad.
2. Copy and paste the following into the new text document:
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Foxit Software\Foxit Reader\MainFrame]
"ShowEditorAd_908"="0"
"ShowReaderAd_908"="0"
"ShowTypewriterAd_908"="0"
"ShowPOAd_908"="0"
"ShowSDKAd_908"="0"
"ShowFFAd_908"="0"
3. Save the document as foxit_noads.reg.
4. Merge the new file into the registry by doubler-clicking it.
5. If you’re using Windows Vista, continue through the UAC prompt and confirm that you wish to perform the action.