Creating a background fill in Adobe Acrobat

I needed to recreate a lost page in a book recently, and thought that I could simply copy the missing text into a text box, then fill the box with colour.

But no. Adobe Acrobat does not allow text boxes to have colour fills. It seems that Adobe considers pdfs to be the equivalent of a 'print' output: and Adobe Acrobat is not an editing tool. Despite the fact that many of us use it as such.

So what we need to do is: 

1. Firstly we create an image file - i.e. .jpg, .png - in the colour we need (I used PowerPoint with a background fill, and Saved As a .jpg)
2. Then, going into Adobe Acrobat, I navigated to the page, and selected the edit tool
3. I clicked the "insert image" in the toolbar, and navigated to the saved location of my colour image to insert it on the page
4. I used the pull handles to align the coloured image with where I wanted it to cover on the page
5. At this point the edit tool had lost focus on the page, so I closed the edit function, saved the file, then reopened edit
6. I was then able to click the image again and send it to back.

Job done.

But who would have thought something so simple would have required so many steps?

Sam