# I dont get any results when exporting CAD data from 3D PDF?

**URL:** <https://community.tetra4d.com/t/i-dont-get-any-results-when-exporting-cad-data-from-3d-pdf/60>\
**Category:** Ask a Question\
**Created:** [April 17, 2017, 4:41pm UTC](https://community.tetra4d.com/t/i-dont-get-any-results-when-exporting-cad-data-from-3d-pdf/60 "2017-04-17T16:41:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jordan](https://sea1.discourse-cdn.com/flex019/user_avatar/community.tetra4d.com/jordan/32/51_2.png) [@jordan](https://community.tetra4d.com/u/jordan)\
**Post date:** [April 17, 2017, 4:41pm UTC](https://community.tetra4d.com/t/i-dont-get-any-results-when-exporting-cad-data-from-3d-pdf/60/1 "2017-04-17T16:41:05Z")

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If you have received a 3D PDF file and are unable to get results from exporting CAD data, more than likely someone sent you this PDF, or used a free 3D PDF exported. Many free 3D PDF creators use a limited “U3D” or “Universal 3D” format. This format does not include properties, metadata, PMI, but most importantly it does not contain any tessellated precise geometry (B-Rep). If you are receiving these results, we suggest to use Tetra4D Converter to convert the native data using one of the PRC settings, then export the to a neutral format, such as STEP.