Show two different pages from a pdf document side by side

In Adobe Reader or Acrobat, with the document open click on Window > New Window

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The document will open a second time in a new window. Now move to the page you want and rearrange the two windows on your screen to show whichever combination of pages you want.

This is really useful for looking at a figure while reading text, or checking a reference list while looking at text.

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