Help to extract symbols for (degree, minute and seconds) from textual pdf to dataframe/matrix.

I have a pdf with text only. The data is in table format. One column contains coordinates with degree, minute and second symbols. The problem I am facing, is on extracting the data, those symbols are converted to noise. How, can I preserve these symbols in the data frame.

a = list(c(121.8,14.4,251.3,403.2))
b = tabulizer::extract_tables(file = "",pages =  8,area = a)
c =,b)

39°41’18”S 174°42’12”E should look like 39°41’18”S 174°42’12”E.
How, can I do this?

Thank you, for your time and effort.

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