In the new version of Office suit, you will be able to edit a PDF directly in the Word 2013 just like editing a DOC file! You will not need Acrobat or any other expensive, so called "professional PDF Editor" any more.
And because of the limitation of file structure, when edit a PDF with lots of images, the layout may mass up; if edit a text PDF, there won't be any problem.
In fact, Word 2013 will convert PDF to DOC first, then you can edit the DOC and export as PDF again.
Someone says that the Office 2013 beta version is finished, will launch next week or a bit later.