一个免费的开源文件转化工具

https://file-converter.org/download

支持的格式见如下表：

	Supported input formats	Supported output formats
Document	csv, doc, docx, eml, eps, key, md, msg, numbers, odp, ods, odt, pages, pdf, ppt, pptx, ps, pub, rtf, tex, txt, vsd, wks, wpd, wps, xls, xlsx	doc, docx, dwg, dxf, gif, html, html5, jpg, md, mp3, odt, pages, pdf, png, ppt, pptx, ps, rtf, svg, tiff, txt, xls, xlsx
Image	3fr, ai, arw, avif, bmp, cdr, cr2, crw, dng, emf, erf, gif, heic, jfif, jpg, mdi, mef, mrw, nef, odg, orf, pcx, pef, png, ppm, psd, raf, raw, sr2, svg, tga, tiff, wbmp, webp, wmf, x3f, xcf	avif, bmp, gif, ico, jpg, pcx, png, svg, tga, tiff, wbmp, webp
Audio	3ga, aac, ac3, aifc, aiff, amr, ape, caf, flac, m4a, m4b, m4r, midi, mp3, oga, ogg, ra, ram, wav, wma	aac, ac3, flac, m4a, m4r, mp3, mp4, ogg, wav, wma
Video	264, 3g2, 3gp, asf, avi, f4v, flv, gvi. m4v, mkv, mod, mov, mp4, mpg. mts, rm, ts, vob, webm, wmv	3gp, 3g2, aac, ac3, avi, flac, flv, gif, mov, mp3, mp4, mpg, ogg, wav, webm, wmv
eBook	azw, azw3, chm, epub, fb2, lit, lrf, mobi, pml, prc, rb, tcr	azw3m epub, fb2, oeb, lit, lrf, mobi, mp3, pdf, pml, prc, rb, txt
CAD	dwg, dxf	bmp, gif, jpg, pdf, png, tiff
Archive	7z, cab, lzh, rar, tar, tar.bz2, tar.gzh, yz1, zip	7z, cab, kzh, tar, tar.gz, yz1, zip

 

直接在上面的链接下载即可