This behavior is probably related to either your browser or PDF Reader, DPK1965. We can try a few solutions to get all the data showing when you email reports and statements.
First is to check if this is browser-related by opening QBO in an Incognito Window. Then, try to email a sample report or statement to see if all the data shows. If it does, go back to your previous browser and clear the cache. I'd also suggest switching to Google Chrome, Internet Explorer, or Mozilla Firefox to do this task.
Second is to ensure that your PDF reader is updated to its latest release. Lastly, you can proceed with repairing the reader to fix any issues within the program.
Close Acrobat/Reader and all open web browser windows.
On your keyboard, press Windows + R.
Type Control Panel, and then select OK.
Select Programs and Features.
Select Acrobat or Adobe Reader, and then Uninstall.
In the Setup dialog box, select Next.
Select Repair, then Next, and select Install.
When the process is complete, select Finish and restart your computer.
Log back in to QuickBooks Online, and email the reports and statements again.
Please keep me updated with the results. I'll be around if you have more questions.
I want to make sure you'll be able to get the assistance you need with emailing PDF invoice.
Since you've already tried all the necessary troubleshooting steps, I recommend you give us a call. One of our Phone Support Specialists will need to check your account and perform further troubleshooting of the issue.