As of this past Monday, the Supreme Court of the United States has joined the PACER system. You can file court documents with the highest court in the land with a PACER account. All documents must be in in the PDF/A archive format (see Appendix B of this guide). Compared to the PACER systems for many U.S. District Courts, SCOTUS has a very high minimum size for uploaded PDF files - 100 MB. The PDF/A files have to be text searchable.