Adobe Reader 出现 "Deskewing image"；"Rotating Image"；"Decomposing Page"；"Recognising Text"

问题：打开一个文件，有时会出现："Deskewing image"；"Rotating Image"；"Decomposing Page"；"Recognising Text"必须重启才行；
解决：打开设置中
* Edit > Preferences... > Reading
* Reading Order: "Use reading order in raw print stream".
* Page vs Document: "Only read the currently visible pages".
设置后，即可！

Ref:http://forums.adobe.com/message/1988985