ITextExtractionStrategy rendertext method

See more:

PDF

I am trying to use ItextSharp.dll to retrieve text from a pdf like: https://skydrive.live.com/redir.aspx?cid=4ec36228e06b7869&resid=4EC36228E06B7869!102&authkey=rwKXNYKtO20%24[^]

I decided to use ITextSharpExtractionStrategy interface. In RenderText method I am getting Text Chunk with its location. Problem appears to be in the first row of table data. Instead of every single number (3,1,1,1,1,3 from each column) render info returns joined text = "311113" from next six column.
The question is how can I get information that every character from string "311113" is different row which belongs to different column.
The only thing I've found interesting is that Charspacing for this text chunk is set to 5.16. But distance e.g between 3 an 1 is approximately 35 not 5.

Thanks for your answers.
Best regards