It would be ideal if you could download an Adobe Acrobat Pro App for the iPad Air or Pro. Especially with the use of Apple's magic Pen, I can just envision how easy it would be to edit, comment, mark up, or sign documents if this integration came to life. I personally work with a lot of PDF documents sent from design firms (i.e. furniture layouts, spec sheets, etc). I would love to have the ability to create block plan layouts, sketch and doodle or add notes to a construction/furniture layout on the iPad air (with the magic pen) through the use of an Adobe Acrobat Pro app. Like why isn't this a thing yet??? Of course I can print the pdf onto a piece of paper and use a pencil to do all of the things listed above, but I just thought something like this would speed up the process and help reduce the amount of plans i have to print out and scan back in. Like let's make this happen. Gooooo Adobe Team! Surely it's not that many lines of code.......;)