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Sumatra PDF Reader forum

Small, fast, free PDF, EPUB, MOBI, CHM, DJVU, CBR, CBZ reader for Windows

How to open fast the pages of a slow PDF file like this one?

Could you release a new version of Sumatra PDF that could open the pages of this PDF file faster?

Because the pages in this PDF file take a long time to open here on my PC. AMD Phenom II X4 2.8 GHz.

A new 64-bit version optimized for multicore processors would be very welcome.
Thiago Freire on February 16, 2017
This is a good point. "Please wait - rendering..." keeps showing up every time I go to a new page.

It doesn't do this in Adobe Acrobat.
sunk818 on February 16, 2017
Seems to be a mupdf issue with many files unfortunately, and it's really irritating seeing that message and having to wait for every single page to render (even with larger cache sizes). Rendering speed is the one major thing that mupdf/Sumatra lags behind in (pun intended!) compared to other major PDF viewers.
Peter on April 10, 2017

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