By default Foxit PDF Editor automatically saves your changes to a temporary file in the following directory every 5-minutes in case of system crash or power failure:
C:\Users\<USER NAME>\AppData\Roaming\Foxit Software\Foxit PDF Editor\AutoSave
The recovery .tmp file contains your changes up until the last time Foxit PDF Editor saved the document.
If you need to change the interval you can do so under Preferences. Here's how:
- From the Ribbon click on File
- Select Preferences
- Select Documents
- Under 'Save Settings' change "Automatically save file every" to your desired interval
When you reopen a PDF again in Foxit Foxit PDF Editor after it has been closed abnormally, Foxit PDF Editor would ask you if you want to load the changes in the .tmp file into your PDF file?
Please select Yes, then the changes saved in tmp file will be loaded into the original PDF file.