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From Fernando Cassia <fcas...@gmail.com>
Subject Re: aoo for android
Date Wed, 17 Oct 2012 06:30:29 GMT
On Tue, Oct 16, 2012 at 3:56 PM, Hagar Delest <hagar.delest@laposte.net>wrote:

> I think that documents need a format for the published status, something
> not editable. What's wrong with PDF?


PDF only stores the visual representation of a "page" (a printed page), in
other words, can render text, and graphics, and tables... but for instance
cannot contain a spreadhsheet with its embedded formulas, only the visual
representation of the ¨finished¨ table with a given set of values and
results, but not the calculations of each cell.

So if you edit a PDF file with a nice table and change one value, the other
values are not updated accordingly by the viewer, as the pdf reader has no
idea whatsoever of what a spreadsheet is.

ODF on the other hand can not only save the information of a table but also
the spreadsheet formulas used to create such table and the results. So if
you change a cell value, the entire spreadsheet data is recalculated.

I think about it this way: PDF is for "dead" (not moving) data, a "final"
destination for written data, ie, it replaces paper (that´s why PDF is
still relevant in "print to pdf" scenarios), but not for data interchange
and much less for evolving (changing) documents.

FC

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