I need to use 32 bit Reader to launch PDF function in some software, I also need to install my 64 bit Pro DC to edit PDFs. When I install Pro DC, it will automatically upgrade 32 bit into 64 bit. And I can't install the 32bit after it's upgraded to 64 bit. it says you've already installed the software. Is there a solution for this?
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Thanks for reaching out.
If you have installed Acrobat Reader DC 64-bit and purchase an Acrobat DC subscription, the Acrobat Reader DC 64-bit application will upgrade to become a fully functional Acrobat DC 64-bit application.
This is an expected change, as one can only keep Acrobat DC 64-bit or Acrobat Reader DC 64-bit applications.
For more details, please go through this article: https://helpx.adobe.com/acrobat/kb/about-acrobat-reader-dc-migration-to-64-bit.html.