A user seeks a PDF viewer for Windows that allows commenting and marking text, as Adobe Acrobat Reader lacks these features in its free version. Recommendations include a free trial of Adobe Acrobat and Nitro PDF, with Nitro PDF being noted for its affordability and functionality. Nitro Reader is highlighted as a free option that meets the user's needs, allowing for comments and markings, although it has limitations in marking styles and navigation. Foxit PDF Reader is also mentioned as a capable alternative, though it is not free. Users express concerns about resource usage, with Foxit being praised for its efficiency compared to Adobe. Nitro PDF Reader's resource consumption is criticized, with users preferring software that is less demanding on system resources. Overall, Nitro Reader and Foxit are the primary suggestions for users needing advanced PDF features without high costs.