Rarely update, crashes when opening big pdf files. – PDF Pro 2 - The ultimate PDF app Review

I love this pdf reader. It has a beautiful and sleek design, and its search engine within a relatively large pdf (for example: textbooks) is quite fast compare to other pdf readers. But when I use it to open some huge pdf files (for example: textbooks with a lot of images) it crashes: it fails to highlight or even open it. The biggest problem is this app NEVER had an update! Wth! Please fix your bugs!
Review by Secretiff on PDF Pro 2 - The ultimate PDF app.