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From Armin <>
Subject Re: about conversion from PPT(PPTX) to image (jpg,bmp and so on)
Date Mon, 27 Feb 2012 08:47:39 GMT

Hyoung joon Jun <> wrote:
> Hi. all
> I have searched  archive of OpenOffice developer's mails for document
> conversion, more precisely from PPT(PPTx) to image(jpg, bmp and so on)
> in C/C++.  I download the openoffice source code and it is really huge
> to dissect and locate a particular feature such as "export" feature in
> OpenOffice impress which allows a user to export PPT to image.
> I am not quite sure if this functionality was implemented in pure
> C/C++ or Apache POI; as long as I know, I guess POI is used  in Java
> for it.
> No one clearly described about this feature in email archive
> ( would you give me a hand  ?
> 1. if this export function is implemented in pure c/c++. can you tell
> me which portion of OpenOffice source code  I can go and look into ?

It's mainly in c++, but you will not find it isolated somewhere, it's more
a result of multiple core features working together. I'm pretty sure it
will not be possible to simply extract a 'PPT to image' function. In
practise the office is used in various situations as server in headless
running mode; then applications communicate with it over UNO API and e.g.
send it a PPT and make it send back an image (or any other available
format, presentations anyways will not be handled well with one image).

> 2. if this export function is implemented in java using POI, is there
> any open source  I may bump into for conversion ? it looks
> imageMagick does not support conversion from PPT. to image.

That conversion is highly complex, nothing I would expect to see in
imageMagick too soon.

> I hope that I can hear some. it would be greatly appreciated.


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