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Linked with /opt:icf,4 to remove duplicate code in resulting executables.

Compiled with /vmb to get faster and smaller acceses to objects. Compiled with /favor:blend to get a good execution speed in both AMD and Intel 圆4 CPUs. Compiled with /GS- to get faster and smaller variable accessing. Compiled with /GA to get faster and smaller threading code. Compiled with /Zp16 to get faster code when accesing data structures specially on newer CPU. Compiled with /fp:fast to increase floating-point operations performance at the cost of some precision loss not noticeable on SumatraPDFOpt. Compiled with Visual C++ 2012 RC instead of Visual C++ 2008 to achieve better quality code (32 bit executable is 4,362 Kb. Added 圆4 compile for native 圆4 systems. You can see official changes in the official repository. If that is the case, you can report it in the official's issue tracker. SumatraPDFOpt is totally free, both for commercial, and private usage.īefore reporting an error in SumatraPDFOpt, please make sure it is not inherited from SumatraPDF stable, or SumatraPDF prerelease. To prevent any possible confusion, my releases are groupped under the SumatraPDFOpt name, as an acronym of "SumatraPDF x86/圆4 Optimized Builds". Of course, the rest of features, should be exactly the same as in official SumatraPDF. I am not modifying original code, but applying a different build chain to gather a better executable, in terms of native 圆4 support as well as regular x86 faster execution speed smaller executable size and lower memory footprint. I am compiling SumatraPDF from the original sources, to make freely available my optimized compiles. It's designed for portable use: only one file so you can run it from external USB drive. Simplicity has a higher priority than a lot of features.