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Clipboard contains two versions of Numbers clipping
Authored by: beepotato on May 13, '09 02:52:42AM
This situation is actually not weird at all.
It was an innovation of the Macintosh clipboard to be able to store multiple representations of the same data, as can be read in the last paragraph of this story: http://www.folklore.org/StoryView.py?project=Macintosh&story=The_Grand_Unified_Model.txt.

Ideally, an application in which the user cuts (or copies) some data should put on the clipboard as many representations of the data as it can. The application in which the user pastes the data will then pick the type (of the ones it can handle) best suited to the situation.
This is what allows an application that handles only plain text to paste formatted text that the user copied from somewhere else: the application does not have to go through the formatted text data in the clipboard and remove formatting itself. There is already a plain text representation of the same data available on the clipboard.

Here, when a table is copied in Numbers, the application puts the table data (understandable only by iWorks applications) on the clipboard, but also graphical representations of the table in PDF, TIFF and PICT, as well as RTF and plain text representations. When pasting, Pages will use the iWorks table data, as it is the representation with the most information and it can handle it. But Preview, only able to handle graphics, will pick the best graphical representation, i.e. the PDF.

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Clipboard contains two versions of Numbers clipping
Authored by: billclinton on May 13, '09 03:46:39PM
It was an innovation of the Macintosh clipboard to be able to store multiple representations of the same data, as can be read in the last paragraph of this story: http://www.folklore.org/StoryView.py?project=Macintosh&story=The_Grand_Unified_Model.txt.
Well, that's certainly an interesting link. I've known of the styled/plain text example but for some reason, seeing this obvious clipboard behavior explained from 1981 strikes me as more than a little interesting. Thanks.

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