If you have a presentation or other materials about your company in one of the following formats: jpg, png, pdf, doc, docx, odt, you can attach them, and the file will be downloadable by those interested in learning about the content you have provided. It is forbidden to include links and other forbidden elements listed in the terms of service, including promotion of websites, financial services, and placing any tracking codes or violating the privacy of any user in the content of the file.