[Therion] Water areas produce heavy PDF files

[Bill Gee]

Hi Rodrigo -

What application are you using to view the PDFs?  I have found that Okular (and anything else based on the poppler libraries) is very slow to render any but the most basic maps.  Firefox running on the same machine will render the PDF far faster.  Adobe Reader is also much faster.  

I turned in a bug report on this to the poppler/Okular group last summer, and Albert Cis did some work on it.  He found a way to make it much faster.  I am not sure if that change has made it to the production version yet.  I have not seen it yet on my Fedora 35 system with poppler version 21.08.0 and Okular 21.12.2.

I have not noticed that water in particular slows things down.  Maybe that is because every map I make has water in it!  :-)

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Bill Gee


On Monday, February 21, 2022 12:36:43 PM CST Rodrigo Severo via Therion wrote:
> Hi,
> 
> Does anybody knows why water areas result in such CPU intensive PDFs? And more importantly, does anybody have any idea on how to solve this?
> 
> Regards,
> 
> Rodrigo Severo
>