Feature request/enquiry: Overprint support

[Laura David Hurka]

Hi Bernard,

I don’t know exactly what overprinting is, or what your requirements are.
I understand it as a feature similar to PDF layers.
Okular has a side panel for layers, you can try it with the last page of what 
a quick internet search gave me:

https://www.edcfiresafe.org/wp-content/uploads/2015/12/Using-Layerd-PDFs-with-Sample-Map.pdf

I assume your requirement is to display the document correctly, only on your 
screen of your local desktop computer.

My conclusion is that Poppler (the PDF library normally used by Okular) will 
need to support “overprinting”.
If a user interface is necessary, that should be a sensible addition to 
Okular, similar to how layers already have a user interface.

Cheers, David

> Hi everyone,
> 
> We are currently supporting a very old version of 32 bit adobe reader on
> our ubuntu 22.04/kde desktops, due to the requirement for support for a PDF
> feature called "Overprint" which is used by our label printing supplier (I
> work for an Australian winery)
> 
> [...]
> 
> Is this feature something Okular would be interested in developing?