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I find Preview is altering my PDF files, autosaving "changes" when I rotate my view etc. I have already chosen "Ask to keep changes when closing documents" in system preferences. When I quit Preview and choose to revert changes, the file date on my PDF file is changed anyway. How do I disable this auto-save feature in Yosemite?
Thanks
MacBook Pro (15-inch Early 2011), OS X Yosemite (10.10.4)
Open Terminal and copy and paste this command for Preview:
defaults write -app 'Preview' ApplePersistence -bool no
To disable it globally:
defaults write -g ApplePersistence -bool no
Press Return key, then reboot.
Open Terminal and copy and paste this command for Preview:
defaults write -app 'Preview' ApplePersistence -bool no
To disable it globally:
defaults write -g ApplePersistence -bool no
Press Return key, then reboot.
Thanks for your reply. I did both commands. This works with the pdf files. However I notice with TextEdit, I would start typing in a file after a few minutes of inactivity and I get the error
"You don't have permission to write to the folder that the file "xxxx.rtf" is in."
This error occurs when TextEdit would normally want to autosave. I can click OK, and then continue typing, or I can type command-S and it saves fine. I would like not to see this error when TextEdit tries to autosave. Is there another step I can take to complete my reversion to old style saving only want I explicitly save?
When you have that System Preferences : General panel's Ask to keep changes when closing documents checked, then autosave is disabled, but the command+s save shortcut is not. You can verify this by looking at the red traffic light in the application. There is a darker center to it that indicates that the document has not been saved, and it will not change, as it would with autosave enabled.
I can open a PDF in Preview, and add several annotations. As long as I choose quit, do not reflexively apply command+s to save, and select Revert, the document does not change. Even the modified time is not updated. I have no ApplePersistence set either globally, or in Preview.
Tested: OS X El Capitan 10.11.1
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