Perfect PDF Annotate

Opens PDFs on an MS Surface Pro 3 but can't highlight/ use pen tools. Bought this to annotate PDF's for research. Couldn't even annotate using a keyboard let alone the pen. What a waste of $2.99. I am sorry I purchased this application.

First of all, they don't have free trial. They will have you pay first before you can download the installer (and there is no refund as indicated in their note). Then there is no way actually on how you can check how it is before you make the payment as there is only 1 screenshot available. Third, annotating is one of the most complicated. I used to use Good reader in iPad. I just shifted back to windows and was looking for a good PDF reader/annotator. Unfortunately, I can't find any. I should have researched further before paying and downloading this program.

Not simple to change annotations, needs work. Pen is big and red. Eraser on surface pen doesn't work.