ISO Tolerance-Modifying Symbols You can apply ISO 14405-1:2016 standards-based symbols to dimensions and tolerances in DimXpert. You can add symbols and other text directly to ISO dimensions and their tolerances from the Tolerance Modifier section in the DimXpert PropertyManager. Parent topicSOLIDWORKS MBD Annotations and Dimensions in 3D PDF Files Dimension Extension Lines Editing Compound Features Wedges