First of all you mast download your software from this link : https://www.adobe.com/cfusion/tdrc/index.cfm?product=acrobat_pro&loc=en
After downloading the software , Open it thin click NEXT button Just as picture show
Then if you have the serial key , Enter it then click NEXT
If you don't click on the INSTALL THE TRIAL VERSION then click NEXT button, Like the picture shown down their
Now just click COMPLETE thin click NEXT button
After that you can choose your direction if you want to change it ,Then click NEXT
Now click INSTALL button to began installing your software,As the picture shown
Just wait a few Minutes to complete setup , it will takes long ,but you should be patient
Finally click FINISH button and you are done , Enjoy !!
Run the software and Start working
After downloading the software , Open it thin click NEXT button Just as picture show
Then if you have the serial key , Enter it then click NEXT
If you don't click on the INSTALL THE TRIAL VERSION then click NEXT button, Like the picture shown down their
Now just click COMPLETE thin click NEXT button
After that you can choose your direction if you want to change it ,Then click NEXT
Now click INSTALL button to began installing your software,As the picture shown
Just wait a few Minutes to complete setup , it will takes long ,but you should be patient
Finally click FINISH button and you are done , Enjoy !!