File Type Searches

Google has been indexing 14 file formats. PDF formatted files are the most popular after HTML files. PostScript and Microsoft Word, Microsoft PowerPoint files are also fairly common. The other file types are relatively uncommon by comparison.

You can limit your search to one or more file formats.

Example 1: Diseases of sorghum filetype:pdf

Example 2: "Integrated Pest Management" filetype:ppt

Example 3: allintitle:Sorghum filetype:doc | filetype:ppt {Use either OR or |}

The query in the above examples limit to the file formats to pdf, ppt, and doc.

Adv Search form does not allow to include more than one file formats as given in the Example 3.

Further reading:

Note: This functionality is also available through Advanced Search page. Look at the following example:

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