Portable document format (or PDF) is a universal document format that allows creators of PDFs to add emphasis to certain sections of a document by highlighting the text in Adobe Acrobat. Readers of the documents can add and remove highlighted text from a document if the creator has enabled commenting in Adobe Reader.
Step 1
Click "Start," "All Programs" and then "Adobe Acrobat/Reader."
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Step 2
Click "File" and then "Open" from the top menu. Click the PDF document of choice and then click the "Open" button.
Step 3
Click and then drag the mouse cursor over the text you wish to remove the highlighting from.
Step 4
Click "Tools" from the top menu and then click the "Highlight Text" tool. The highlight text tool looks like a "T" with a marker. The highlight is removed from the text.
Step 5
Repeat steps 3 and 4 to remove highlighting from additional text in the Adobe document.