love the app, but a resource hog

I love this app. Like many apps produced by Readdle, it is simple, intuitive, and powerful. Beats Adobe Acrobat Pro and all the other unnecessarily complex apps for 95 % of my needs. But the app consumes an inordinate amount of memory (often around 600-700 mb even with one or two open documents and jumping to 1-2 gb when more than 2-3 documents are open) and cpu (around 95% all the time). Not a problem on my imac, but depletes battery fast on my 2014 macbook pro retina. I tried it on my rarely used 2011 macbook air; there, it kills the battery very fast. Hence I find myself going back to Acrobat Pro. It is ugly & complex but very efficient in memory & cpu usage.

I hope the developers address this issue soon (perhaps only loading 2-3 pages when they are in view?), so that this app becomes pretty much the one-shop solution for the great majority of my needs.

Kieran Adonis about PDF Expert – Edit, Sign PDFs