You can try stopping the spooler to fix the “Document pending” issue. For this, you need to select the Control Panel from the Start menu and then select the Administrative Tools. A new window is displayed on which you need to select the Services tab and scroll down to Print Spooler. Select the Spooler and click the Stop button. After doing this, you need to try rebooting the system and can see that the message vanishes.
Get more information to fix Printer Document Pending problem. Hope this information helps you.