Adobe Premiere Pro - Iphone HDR footage to avoid Exporting Overexposed or Blown Out - Footage

Choose 

>Match Sequence preview settings

This menu title your file that you are exporting

Click the blue letters next to "Location" that will open up the dialog to allow you to choose

the location to save your file

Navigate to your hard drive and title the file

Click Save

Check to make sure that the Source Range is set to

Entire Sequence

After the file exports it will be a large ProRes file that is usable for delivery but to upload to 

YouTube or the web you need to compres it

Open Quicktime Player

Open the file you just exported

>File > Open File

Then Choose > Export As > 1080 or 720

Choose where to save the file

And also choose to save the file as "Greater Compatibility H.264"

Title the file and click > Save

This will make a file that looks correct and can be uploaded to the web.