One file only. 20 MB limit. Allowed types: gif, jpg, png, bmp, eps, tif, pict, psd, txt, rtf, html, odf, pdf, doc, docx, ppt, pptx, xls, xlsx, xml, avi, mov, mp3, ogg, wav, bz2, dmg, gz, jar, rar, sit, svg, tar, zip, edoc.