Acrobat Pro Changing My Font + Confusing Text Selection Behavior (How Do I Select All?

Hi everyone,

I’m using Adobe Acrobat Pro Continuous Release Version 2026.001.21691 (Enterprise) on Windows 11, and I’m trying to understand some behavior I’m seeing when working with PDFs.

When I convert a Microsoft Word document to PDF, Acrobat changes some text to Minion Pro, which I understand it’s due to the fallback font.

I also learned that changing the Default Font in Preferences only affects new text, not existing text. So:

How can I change the font for all existing text in a PDF?

• Ctrl + A doesn’t select the entire document

• Acrobat only selects one text block at a time

• Some content, even single sentences appear inside individual text boxes

• I’d like to avoid exporting back to Word and reconverting if possible

I’m seeing inconsistent text selection behavior

Depending on where I click, Acrobat behaves differently:

• Sometimes a whole paragraph highlights

• Other times only a single line appears in its own text box

• If I click in a blank area at the bottom of a page and press Ctrl + A, Acrobat draws a boundary around multiple sections and lets me format the entire page

I’m trying to understand why the selection changes depending on where I click, and whether there is a consistent way to select all text on a page or ideally across the entire document for basic formatting like font, size, or color.

Any guidance would be appreciated.