You can export CAD design drawings as PDF/3D PDF documents, so some kind catdrawing to pdf conversion or export should certainly be doable. However, this will only make basically a picture that is good for sharing and publishing, but it also means it will not be useable as CAD file anymore. There should be a dedicated PDF function in CATIA and you can also achieve the same using some dedicated CAD conversion and format translation software.
Open CATDRAWING file Open PDF fileA CAD converter with huge format support