When I open several images in preview and apply quick modifications in succession I would like to close preview and save all the files without questions. Unfortunately preview keeps asking for each modified file if I want to save it or restore the original. Which is anyway quite useless because it only offers the name instead of showing what image is the question about.

The only quick and manual way I've found is to use the keyboard shortcuts for save + close window in quick succession. But this is quite tiresome. I was hoping there is a "save all" but can't find anything like that in the menus. Can all files be saved without the annoying question?

2 Answers 2


You can force Preview to prompt for save on quit with the following Terminal command:

defaults write com.apple.Preview ApplePersistenceIgnoreState -bool true

Quit and re-open Preview once and you will be prompted in future closes

  • And there it is. Nice work!
    – chillin
    Commented May 10, 2014 at 19:12

Appearance Control Panel in System Preferences

enter image description here

I believe you may find what you are hoping to accomplish by checking here, which describes how to disable the autosave function, which is not what you are looking for... but in the top most screenshot is the Appearance Control Panel (/Applications/System Preferences.app/Appearance Control Panel) there is a checkbox to utilize the builtin autosave features of Lion, Mountain Lion, and Mavericks. Find that control panel and uncheck "Ask to keep changes when closing documents" and see if that does what you want.

  • That works. It would be even better if this could be turned off only for preview while leaving the global setting turned on. Commented May 10, 2014 at 13:29
  • @GrzegorzAdamHankiewicz please see grgarside's answer
    – chillin
    Commented May 10, 2014 at 19:11

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