While a document is already published and is in the pre-press stage, as the recipient or the creator, you may be asked to make changes to it. You may, for example, be asked to do a bit of PDF text editing, or image editing.
Unfortunately, making changes to PDF content does not come as easily as they do in a Word document. Same goes for the flexibility you have with image editing. Some secured PDFs actually prevent it. However, if you have a PDF that allows it, there are a couple of editing options available.
To edit PDF images using Adobe Acrobat 11 Pro and an image editor on your computer, you must first set up the image editing application to work with Acrobat.