Adobe Acrobat has a Edit Text & Images Tool for content editing. This tool can be used to do minor text edits, such as deleting a small amount of text, or fixing a spelling mistake.
Open your pdf file, and select Edit Text & Images by clicking on “Tools” and selecting it from the “Content Editing” section as shown in the screen shot below. If you use the tool a lot, right click on the tool to “Add to Quick Tools” and it will appear on your toolbar.