How do I undo the auto wall straightening?

By default, AutoHDR applies perspective correction to make sure your vertical lines are straight. To disable it, de-select Perspective Correction when uploading the photo shoot.

Permanently disable it

You can also turn it off as a default for all future shoots by going to autohdr.com/account → Style Settings and toggling Perspective Correction off.

Already-processed shoot

If you want a past shoot redone without wall straightening, re-upload it after toggling perspective correction off — re-runs are free since you only pay for what you download.