MyMorph supports a huge number of document sources. MyMorph does require registration to use, as does its online twin, DocMorph.

Input Formats: DIF, DOC, DOCX, HTM, HTML, MCW, PDF, PPT, PRE, RTF, TIFF, TTF, TXT, WK1, WK3, WPD, WQ1, and XLS

Output Formats: PDF, TIF, and TXT

Most popular image formats are supported for input as well including BMP, DCM, DCX, DIB, FPX, GIF, ICO, JBIG, JPEG, JP2, MTV, PDB, PBM, PCD, PCX, PGM, PIX, PNG, PNM, PPM, PSD, RAS, SUN, SVG, WBMP, XBM, and XPM.