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Re: [libreoffice-users] Can Libreoffice Compress a PNG file?


Den tors 23 apr. 2020 kl 06:08 skrev Musical Neptunian <
secretelf77@gmail.com>:

> I make Twitch emotes in GIMP. They cannot be more than 25 Mb or Twitch
> rejects them. I found a tutorial somewhere that said that Libreoffice has a
> png compression tool. But when I put my png into LibreOffice I got a whole
> load of symbol junk. So instead I used a free online tool that reduced my
> png from 30 Kb to 7 Kb with no quality change.


If 25 MB (file sizes are rarely measured in Mb, therefore I assume you
meant MB, if not MiB) is the upper limit, why do you need to compress a 30
kB (I assume you didn't actually mean Kb – Kelvin-bits) at all?

And yes, when you compress a PNG there's no quality change. PNG compression
is lossless, just like ZIP and similar. That's the reason PNG in general
are much bigger in file size than JPEG, for instance.


> But could I have used
> anything in Libreoffice to do this?
>

Using LibreOffice for images at all seems a little bit odd to me…


Kind regards

Johnny Rosenberg


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