I create 2 presentations a week of 50 - 100 slides. The average size is about 30mb. If I save the file as .pptx it takes up around 300kb! That's 10 times smaller. While not a problem in itself, this quickly eats up space. With 100 presentations that's 3gb of space used. That's not a trivial amount. 30mb is also a considerable amount to send via email compared with the 300kb PPTX Is there anything I can do to make the files smaller? They seem to be unreasonably large compared with other formats.
Tom, we would either need one of your presentations (simply attach them to this bug - but FYI they're then publicly available), or a detailed step-by-step approach on how to generate those files (which pictures/graphics/other content you use - I suspects that's what blows up the size).
Try to disable fonts embedding (File->Properties...->Font->Embed fonts in the document).
That has fixed it, thank you! I just saved a 51mb odp without fonts and it now takes up 121kb, roughly the same as the PPTX at 134kb (So actually slightly smaller!) There must be a genuine bug here though as I'm only using 2 different fonts in the presentation. I can't see how 2 fonts (even with all the italic/weight variants) can take up 50mb. This fixes this particular bug and certainly helps me store/email the documents with less hassle however there is certainly a problem with embedded fonts given a TTF is generally less than 500kb.
*** This bug has been marked as a duplicate of bug 65353 ***
(In reply to Tom B from comment #3) > There must be a genuine bug here though as I'm only using 2 different fonts > in the presentation. I can't see how 2 fonts (even with all the > italic/weight variants) can take up 50mb. > Regardless of the fact whether the font files are too big - font embedding is off by default, so this should happen only when explicitely requested.