On Wed, Mar 2, 2016 at 5:29 AM, Denis Auroux <aur...@math.berkeley.edu>
wrote:

>
> The point is that you just shouldn't expect good behavior when the PDF
> changes anyway -- if the number of pages changes, xournal won't modify
> the xoj to reflect that anyway and we don't really want it to unless
> we're sure the user wants to do that. The official party line for the
> time being is: don't change the PDF. If you do, quit xournal and reload,
> then you won't be able to see any newly added pages, and all your
> annotations might be off.
>

I have thought about this issue in the past and it is really outside
xournal. If one modifies the underlying PDF, then the annotations might
move, and there is no way to sync their location to the next text (Xournal
does not store anything about there an annotation is but location).

but once in a while I need to change the background pdf. In that case,
replace the PDF and simply reload the xournal file and that does it. The
only issue that I have found is where the new PDF has more or less pages.
In that case, xournal will not update itself to account for the different
page count. That is something that we could fix, I suppose, but only in the
case that the new PDF has more pages than the previous one, or the new pdf
has less pages and there are no annotations in the last page. I usually
solve this by hand (edit the .xoj file)



-- 
--dmg

---
Daniel M. German
http://turingmachine.org
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