The background shown in the Preview Pane for Edit, Background, Update does not show up.
Statement of problem (Adobe Acrobat Standard DC):
The background shown in the Preview Pane for Edit, Background, Update does not show up.
Other information:
Previously used
Edit, Preferences, Accessibility
Check Replace Document Colors
Custom Color, Page Background
to set a white background as default for all pdf's.
Desired action: set specific background for current PDF.
Steps (using https://helpx.adobe.com/acrobat/using/add-backgrounds-pdfs.html as guide)
Edit PDF, more, Background, Update
From color
Palette, Red, Green Blue sRGB specification, OK
shows the chosen background color in the Preview Pane.
Below the Preview Pane shows only OK or Cancel (does not show multiple pages)
The Page Range shows pages 1 to 2.
OK gives a pop up
Backgrounds have already been defined for some of the pages in the specified page range. Click OK to replace theses with the new background, or click Cancel to go back and specify a different page range.
Click OK
Results
The background in the Preview Pane does not show up. White background shown.
Edit PDF, go back
The background in the Preview Pane does not show up. White background shown.
Thanks for your advice.