Design Review CAD viewer software allows users to effortlessly view, annotate, print, and monitor modifications to both 2D and 3D files at no cost, without needing access to the original design applications. It supports a diverse range of file formats, such as DWF, DWFx, DWG, and DXF (which requires the installation of the complimentary DWG TrueView software), along with Adobe PDF and various image formats including .bmp, .jpg, .gif, .pcx, .pct, .png, .rlc, .tga, .tif, .mil, .cal, and many others. With user-friendly tools, individuals can measure, annotate, and examine 2D and 3D designs directly from their desktop. This software facilitates collaboration by enabling the sharing of changes with team members and stakeholders who do not possess the original design tools, thus reducing paper usage and minimizing potential misunderstandings. Users can benefit from advanced features specifically designed for DWF Viewer and Volo View, allowing them to open and inspect high-resolution drawings, maps, and models with ease. Additionally, the software provides capabilities to measure parts, areas, surfaces, and dimensions, leading to clearer and more precise communication. Users can also incorporate comments, details, and proposals for design modifications into their 2D and 3D files, fostering a more collaborative design review process. Overall, this tool streamlines the workflow, making it easier to manage design files effectively.