I'm not entirely sure what you mean by "not converted" but Google does index PDF Files.
Google can index the content of most
types of pages and files. The most
common file types we index include:
- Adobe Flash (.swf)
- Adobe PortableDocument Format (.pdf)
- AdobePostScript (.ps)
- Autodesk Design Web Format (.dwf)
- Basic source code (.bas)
- C/C++ source code (.c, .cc, .cpp, .cxx, .h, .hpp)
- Google Earth (.kml, .kmz)
- GPS eXchange Format (.gpx)
- Hancom Hanword (.hwp)
- HTML (.htm, .html)
- Java source code (.java)
- Microsoft Excel (.xls, .xlsx)
- Microsoft PowerPoint (.ppt, .pptx)
- Microsoft Word (.doc, .docx)
- OpenOffice presentations (.odp)
- OpenOffice spreadsheet (.ods)
- OpenOffice text (.odt)
- Perl source code (.pl)
- Python source code (.py)
- Rich Text Format (.rtf, .wri)
- Scalable Vector Graphics (.svg)
- Text (.ans, .asc, .cas, .txt, .text)
- Wireless Markup Language (.wml, .wap)
- XML (.xml)
