On Thu, 3 Aug 2006, Stéphane Conversy wrote:
Do you know what this format is ?
We think it might be compressed, possibly with a header.
Your best bet is to take your source TIFF file, and compress it as many
ways as you can think of (gzip, bzip, gzip -9, gzip -1 etc) and see if you
can see shared sections between the data in the PPT file and the
compressed versions.
That might help us figure out what compression scheme (if any) is used,
and what header (if any) there is on the start of the images
If we can translate a TIFF image to a png, would it suffice to replace
it in the in-memory array of pictures and save the document ?
Possibly, it's worth a try. Try taking a PPT file with a TIFF image and a
PNG image, then overwriting the data of the TIFF PictureData with the data
of the PNG PictureData, setting the type on the PictureData to png, then
saving the PPT file
Nick
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