Most Apple applications in newer OS X versions, like OS X 10.9, automatically save all changes to all files and documents without your approval, and file versions and revisions are automatically available from within a submenu within the File menu.

Where are such revisions saved, filesystem-wise?

If one is to exchange such files, how would one ensure that none of the history gets exchanged, too?

What if one did want to exchange the history, is there a way to accomplish that as well?


Versions are stored within the same file so a myfile.pages will have all there versions stored within it.

A version is only stored when you save from the file menu or use cmd- S

The version is just a bit of text that details the changes made since the last version so is not a copy of the file at that stage.

So if you sent the file to someone else they should get all the previous versions as well.

  • What about the files like the .png images? Clearly a version is stored not only when ⌘S is used. – cnst Sep 22 '14 at 17:00
  • Preview doesn't make versions for pictures. The file type of png does not work with versioning on OSX natively. Any pngs within a pages doc for example will be contained within the pages package. (A pages a "file" is in fact a directory of smaller files that are built into the document when opened). Only certain document types are version able. – Paul Gilfedder Sep 22 '14 at 17:21
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    But I do have different versions of a .png file in Preview -- it offers the option of getting back to an older version, all through the File menu on OS X 10.9. – cnst Sep 22 '14 at 17:36

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