[okular] [Bug 471792] Annotations greatly increase PDF file size and massively slow down Okular

[Joe Breuer]

https://bugs.kde.org/show_bug.cgi?id=471792

--- Comment #2 from Joe Breuer <kde at jmbreuer.net> ---
(In reply to Sune Vuorela from comment #1)
> What version of the underlying Poppler library are you using ?

23.05

> Some versions did embed the same fonts multiple times, and your "big"
> document contains ~140 copies of noto fonts

Ah, thank you! That makes (altogether too much) sense.

> It should be fixed in version 23.06 of the poppler library.
> 
> With poppler 23.06, adding annotations should grow the document with
> approximately 600k. With poppler 23.07, it should grow the document with
> approximately 300 k, assuming noto sans (okular default) is used.

I'll have a look into that very shortly and let you know - 23.06 looks to be
available in gentoo 'testing'.
Trying a 23.07 bump is not immediately accessible to me, since there's
apparently no release or even git tag yet. Not sure that I want to run git
master on a production system.

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