Supported file formats for PDF conversion:
Ebook formats
.azw4, .epub, .mobi, .chm
Other: .azw3, .comic (cbr, cbz), .djvu, .fb2, .htlz, .lit, .lrf, .pdb, .pml, .rb, .recipe, .snb, .tcr
Document formats
.pptx, .odp, .docx, .xlsx
Other: .ppt, .txt, .html, .odt, .doc, .rtf, .docm, .dotm, .dotx, .dot, .pot, .potm, .potx, .pptm, .ppsx, .pps, .ppsm, .xlsb, .xlsm, .xltm, .xltx, .xlr, .xls, .xlt, .xlw