pdf to txt convertion in qt or c++

Hi How can I convert pdf to txt with qt ? if there isn't way to do this , Is there any library for c++ that convert pdf files开发者_运维百科 to txt files ? thanks. My os is windows7 and my ide is visual studio 2008

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Foxit sells their PDF code as a library. I use it, and it's great.

http://www.foxitsoftware.com/pdf/sdk/dll/

You may know them for their very popular free Acrobat Reader alternative.

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Not all pdf files contain text. When getting text from them you might need to use OCR. It is possible to build an printer driver for a virtual printer and get the text by capturing undocumented windows messages. To my knowledge there is no easy foolproof way to do this.