I appreciate you for coming back to the thread and for conducting some steps to resolve the issue of creating PDF invoices, Jamie KR. I'll be sharing other troubleshooting steps to ensure you can create PDF invoices smoothly.

Since the issue persists, I suggest resetting your temp folder permissions if you haven't yet performed this. You have to check the folder permissions to the TEMP folder.

Here's how:

1. Press the Windows key + R to open the RUN command.
2. Type %TEMP% and press Enter.
3. Right-click an empty area of the temp folder, and choose Properties.
4. Click the Security tab.
5. Ensure all usernames and groups are showing on the Security tab have Full Control.
6. Email the statement as PDF again within QuickBooks once permissions have been set to Full Control.

Then, you'll have to confirm that you can print to your XPS Document Writer. QuickBooks uses parts of the XPS Document Writer (Microsoft Windows product) to save as a PDF. Please follow the steps below.

1. Open Notepad. Then, type Test. 
2. Select File and Print.
3. Choose the XPS Document Writer and click Print.
4. Type a filename and save it to your desktop.
5. Go to your desktop and view the XPS document you printed from notepad.

If the problem continues after completing the solutions above, kindly check out this article for the additional steps you need to take: Troubleshoot PDF and Print problems with QuickBooks Desktop. You can start performing from Solution 2: Reset your temp folder permissions' Step 2: Confirm you can print to your XPS section. It contains detailed instructions on how to execute the process correctly.

However, if the issue continues to occur, I recommend contacting our QuickBooks Support Team. They have the tools to pull your account to deep investigate the cause of the problem.

On the other hand, please know that Intuit doesn't support Microsoft apps and isn't responsible for these tools. That said, you'll have to contact an IT professional. They have the tools to pull up your account in a secure environment and deeply investigate the cause of the last error you've received.

Lastly, you may refer to this article to view steps on how you can personalize your emails to customers and vendors: Create custom email templates in QuickBooks Desktop. It also contains information on how you can use it for emails sent alongside single transactions, batch emails, and even when you send pay stubs. 

You're always welcome to comment below if you have other questions about creating PDF invoices in QuickBooks. I'll be here to help, Jamie KR. Have a great day!