New answers tagged adobe-reader
Press Ctrl+K, go to Documents, tick Allow multiple instances.
Acrobat does not include that kind of toolbar customization. You can possibly get some room back by disabling Touch Mode in Preferences > General, but that won't remove any buttons. If you want a different UI, you're going to have to use different software.
First, you should try another software. It is possible a problem with Adobe Acrobat. Also - if nothing is being read when you check the other voice, it could be an installation problem for the voice. You should add which operating system you are using.
You can click the arrow/triangle located at the middle of the left and right panes to show or hide them, respectively, as shown in your picture (replicated below).
Of course, you can have multiple windows. Just with any software using tabbed view, grab the tab and drag it away from the tab bar. In Acrobat/Reader, you will see a small page icon when the tab has been released from the initial window. You may also use menu Window --> New Window, and the current document gets its own window immediately.
I'm not sure what you mean by "two-columns", of course you could not see the same page divided in two columns. But maybe you meant just to see two pages side-by-side. That could be easily achieved in Adobe Reader DC, by going to View in the menu bar, and clicking on Page Display, and therin clicking Two Page View. Hope this answers your question.
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