A PDF file is a digital format for storing files online. PDF files are produced with an open source PDF formatting tool called Adobe Acrobat. More information about the Adobe Acrobat PDF programming tool here Free 3D PDF viewer for Windows (recommended setting for new user) View and interact with high-quality 3D content created in professional 3D CAD or 3D modeling programs and embedded in PDFs. Viewing 3D PDF models in Adobe Acrobat Reader Create 3D PDF files Open the PDF file and select the 3D model to activate it. Then click the Options option to adjust the 3D model settings or click Options at Proximity 3-D (recommended setting) The Proximity 3-D 3D viewer software is designed for viewing a 3D PDF file, which is not in the default view mode that is set under the 3D tab in the main menu. It can automatically adjust the 3D view mode at an instant for viewing a PDF model that is not in the default view mode. Proximity 3-D (best view mode) Proximity 3-D is useful but has a special button that can be used to view a PDF file in a new tab in another window. 3D Viewer Pro is available for free to download from here View 3-D and other files in Adobe Reader using the 3-D Zoom module Use our FREE PDF Reader and FREE PDF viewer online. Read PDF files and view PDF files with our online PDF reader and 3D viewer. Try our online PDF reader right now. View 3-D and other files in Adobe Reader using the 3-D Zoom module A PDF file is a digital format for storing files online. PDF files are produced with an open source PDF formatting tool called Adobe Acrobat. More information about the Adobe Acrobat PDF programming tool here Adobe Acrobat Professional View 3-D and other files A PDF file is a digital format for storing files online. PDF files are produced with an open source PDF formatting tool called Adobe Acrobat. More information about the Adobe Acrobat PDF programming tool here Adobe Reader — Professional View 3-D and other files View 3-D and other files in Adobe Reader using Adobe Reader Start from the main Adobe menu and click on Adobe Reader — Professional View. Select the View tab on the left side of the view window, then click the 3D View tab.