As of High Sierra, Preview always opens all selected PDFs in single windows for each document. In the preferences menu, there is an option to change this behaviour for images, but not PDFs.

This is a real bummer and makes Preview a lot less useful. What is Apple thinking?

Ok, the real question is: How do we fix this?


2 Answers 2


You can install Preview 9.0 again from https://github.com/frhd/macOS-Preview9.0.


As an alternative to the default behavior, you can open new files in tabs instead of new windows by modifying a system preference.

Go to System Preferences > Dock, and in the middle of the window change:

Prefer tabs when opening documents: from In Full Screen Only to Always

  • It does on my machine. i did validate it. i'm running high Sierra with latest Preview.
    – Natsfan
    Nov 25, 2017 at 17:42
  • i now have 2 open PDF files in one window but with separate tabs.
    – Natsfan
    Nov 25, 2017 at 17:44
  • If you gave me the downvote I'd appreciate you removing it. This is a solution and the one I use.
    – Natsfan
    Nov 25, 2017 at 17:47
  • This is no solution. And it does not work. Opening all files in separate tabs yields nothing. You cannot batch process them Apr 13, 2018 at 17:04
  • Sorry, but it worked for me and others. I went thru this last year when I posted this answer. The person who downvoted the answer then found out it did work and withdrew his downvote. Maybe checking things on your end before rudely saying that answer is wrong. Maybe things have changed since November 2017. I don't know.
    – Natsfan
    Apr 14, 2018 at 19:05

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