Problem editing text in Acrobat X

[Tulo2low]

Hello,
I am trying to delete a few numbers in a pdf file. I used the recognize text tool and now I'm able to highlight all of the text. I click at the end of word and the cursor remains blinking just as it would in a text editor. However when i press backspace, the cursor moves as if the text were being deleted, however the text remains. Am I doing something wrong?

Thanks

 

[PhilFrisbie]

Was this file a scanned document that was OCRed? If so, then you are deleting the text behind the image of the text, and you still need to erase the image of the text.