MacOs PDFTK issue

[mflorange]

Hi,
First I want to thank you for this great extension !
I'm on Mac High Sierra and I have a slight issue.
I've used pdftk for a while (I have the 2.02 version) but when I use your extension I keep getting a message telling me that it's not installed. Therefore I can't have a combined pdf.
I suppose I need to move my pdftk folder to another location so it can be detected, but I'm not sure where it should be.
Any suggestion?
Thank again for your great work
Marjorie