When you convert RVT and DWG the 2d views can be generated in the PDF format as long as you use the advanced option 2dviews: pdf

Please refer to this blog

For different file formats you might take advantage of Design Automation:

• IFC: You can import to REVIT using DA4R then export the 2d views in PDF format
• DGN: You can import to AutoCAD using DA4ACAD then export the 2d views in PDF format

You can also always generate screenshots with the Viewer