witcher 3 artbook is around 1gb. adobe reader/firefox both are pretty slow while scrolling. need a fast/multithreaded/realistic way of going through the artbook.

thanks in advance

I haven't used Windows for a while, but Sumatra PDF was pretty fast and lightweight.

it's not really making much difference. the problem is the vast amount of images. it's only utilizing a single core, same as other pdf readers. i may need to convert/uncompress or something. not really sure how to speedily scroll aside from printing it out. it's on a fairly modern 12ghz cpu too.

Sumatra PDF has been my PDF viewer of choice for a long time. Its small and quick.

It should be open source. Get in there and add the code to make it utilize all of your cores.

I'm not sure if you're jesting, but multi-threaded coding is, or at least last time I had to code it (6 years ago), not a simple task.

Sumatra all the way (Yes I know it's been said before)

http://www.sumatrapdfreader.org/free-pdf-reader.html Depends on the type of data. With data that changes, that complicates things. With data that doesn't change (immutable or read-only) then it's far easier since you can do tasks and then update compartmentalized sections.

I think a lot of multi-threaded (or fiber) based code is moving towards work that doesn't have to overlap, thus taking out the issues with locking mechanisms.

I can't say how well it works with your PDF, but in my experience mupdf has been absolutely the fastest and lightest PDF reader.