Totally uninstall your existing Acrobat via the Windows Control Panel and reboot and only then install the 64-bit Acrobat installer (URL above). įrom what I understand it does not support all localizations at this point and should not be used for updating existing 32-bit Acrobat to 64-bit Acrobat.

However, there is an installer available now at. This is being rolled out in limited geographies at this particular point. It is easy to boost performance if you take shortcuts that don't quite implement the full specification and meet the needs of professionals.īeginning this month, Adobe is beginning to selectively roll out 64-bit versions of Acrobat Reader DC, Acrobat Standard DC, and Acrobat Pro DC on Windows.

plus all the various tools for PDF file manipulation. Acrobat users expect full compliance with the ISO PDF specification including full support for transparency (and all 16 blending modes), color management, spot colors, overprints, etc., etc., etc. Performance comparisons between products must be apples-to-apples. Quite frankly, you need a pretty large and very complex PDF file to run out of 3+ gigabytes of virtual memory address space. The only performace gain occurs if and only if you have such a large PDF file that an application cannot keep all or most of the PDF file and internal tables associated with same in memory. In and of itself, 64-bit is not any higher performance than 32-bit and in some cases may actually yield lower performance than 32-bit. I endorse his response as being accurate and truthful!

No one here is “down on 64-bit” but rather, are giving you real information, not Screen Name is a highly skilled, respected, industry professional with many years of industry experience.

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