When I am working with 10 – 15 open windows in Preview I often accounter the problem that I can't open a new PDF-window. Instead I need to open it in iBooks to make it work. I have no other PDF viewers installed.

Has anyone else had this problem and does any one know what I can do about it?

  • 1
    How many is "several" (5 or 500)? And are you sure that you can't open a new window or may the new window be hidden behind others?
    – nohillside
    May 13, 2014 at 12:34
  • You hit spacebar to open them?
    – Rob
    May 13, 2014 at 12:37
  • 1
    By several I mean about 10-15. When a try to open the PDF (double click) I can see the initial animation that a new window is about to open but it then nothing more happens. It is not possible to see the new PDF-window in the all-open-windows directory.
    – Seb
    May 13, 2014 at 12:38
  • Are we talking about Open all files in one widow or separate windows
    – Ruskes
    May 13, 2014 at 13:08
  • 1
    Thank you @Buscar웃. I noticed the setting had changed to "Open groups of files in the same window" so this could be the reason. I have now chosen "Open each file in new window" and I hope this solves the problem.
    – Seb
    May 13, 2014 at 14:21

1 Answer 1


Preview has 2 settings for opening files.

One is Open all files in same window

the Second one is Open all files in separate window.

The open all files in one window side bar will show all files, and will add a new open file toit.

But, check your settings for Sort by in the side bar, pending those setting the new file might not open at the bottom of the list, so with 15 files open you might miss it.

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