A good value in a basic PDF application, Nitro Pro will suffice for an array of ordinary PDF tasks. And now in this corner, the scrappy competitor: Nitro Pro 8, a PDF application that costs just $120.

Alternatives to Acrobat and Acrobat Reader for simple operations such as merging PDFs. These directions are for the Mac version of Adobe Acrobat Pro (version 9). Others should be similar. I suggest ...