Comments

• @dstillman Many thanks. I closed the software and reopen it, then all the pdfs is readable. I may choose this way to solve the problem.

  in what happened when pdf is opened but all I can see is blank? Comment by Bernard_c yesterday at 2:31pm
• Actually, when i open more than around 10 pdfs (not that exactly), all the opened pdfs will become blank and there is no response. Sometimes, i scroll down or scroll up, there maybe some sentence appears, but soon it become blank again. I guess, wh…

  in what happened when pdf is opened but all I can see is blank? Comment by Bernard_c 2 days ago