Typically, this issue occurs when another PDF program overwrites the QuickBooks PDF driver.
QuickBooks uses a PDF driver from Amyuni Technologies, which also provides PDF drivers for a variety of other vendors' software.
Note: Fixing the QuickBooks PDF converter may break the PDF functionality of the third-party program that the driver was set to use. Typically, the third-party application will continue to work because the QuickBooks drivers should work for third-party programs, but if you notice that other applications begin to have PDF issues, this may be the cause.
If this solution does not resolve the issue, you can read discussions and post messages and questions relating to your issue on the Intuit QuickBooks Community site for free, or you can contact a technical support agent for additional guidance. Fees may apply.