[Libreoffice-bugs] [Bug 115464] UI of export to PNG and JPG misleading for resolution

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=115464

--- Comment #34 from Dirk Munk <munk at home.nl> ---
The graphics engine of LibreOffice is not really meant for picture
manipulation, like changing ratio. I use Affinity Photo for all my picture
manipulations, and then I insert the image with the proper dpi and size (in
cm).

This bug is about exporting office documents as png or jpg. I noticed that the
documents will be exported with the display dpi (96 in my case), and then
recalculated in the desired dpi (often 300 for prints). 

That will result in loss of quality. For instance if the page has a 300 dpi
image inserted, the number of pixels will be reduced at first (to 96 dpi), and
then increased again to 300 dpi. That is not the way it should be.

If a document has to be exported to png or jpg, the resulting image should be
calculated in one step, so in this case to 300 dpi.

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