Foxit Reader Portable lets you open, view, and mark up files in PDF format, and since it's portable, you can take it with you wherever you go. The smooth interface should be comfortable for all experience levels.
Stamps and other tools: When you're working on a PDF in Foxit Reader Portable, you have quite a few tools at your disposal. For instance, you can quickly add comments and notes, mark up the document with the pencil, and even add stamps.
Print and Export options: When you're done reviewing your documents, you have several options for exporting and sharing. You can save your updated document in either PDF or TXT format, and you can also resize and print the document with all formatting intact if you need a hard copy of the file.
Add-on features: There are quite a few features available for Foxit Reader Portable that do have to be downloaded separately as plugins. Some of these include Spell Checker, Firefix Plugins, and Eastern Asian Language Support.
Foxit Reader Portable is a good option if you need to review, mark up, and print PDFs. While it doesn't allow direct editing of the contents of the file, the markup tools provided let you include your thoughts and comments, so you can share them with the rest of your team. The need to download some features separately seems like an unnecessarily complicated process, but it doesn't have to be a huge drawback, especially if you don't intend to use those particular features.