posted on September 23rd 2015, at 14:22
by lunarg
By default, opening a PDF in Adobe Acrobat Reader DC also displays the Tools Pane, which can be annoying for some. While it is not possible to completely remove the toolbar, you can collapse it, but this gets reset each time some other document is opened. This behaviour can be turned off so the pane remains collapsed when opening other documents.

The setting is found in the Preferences:

in the menu click on Edit → Preferences, or press CTRL + K.

In the Categories list, click on Documents.

Unselect Open tools pane for each document, then click OK.

The very next time you open a document, the pane may still be visible if you haven't hidden it during the previous run, but if you collap  ...
On July 1st 2016 at 18:59, K L wrote:
Thank you so much for this guidance.

This sidebar opening automatically for every doc even though you previously hid it was so very annoying. In my opinion this selection should be more of a top level selection and not be buried in an obscure place.