Hi, 

   When a src code block is exported to latex-pdf, the src lines sometimes are too long to fit in a pdf line. One easy way to handle this problem I can think of is to temporarily change font size. What is the best way to do that in org model?  Say that if I have two src blocks, I want the first code block to be typeset in scriptsize but the second block typeset in normalsize . 

#+BEGIN_SRC R

print("This block in scriptsize")

......

#+END

#+BEGIN_SRC R

print("This block back to normalsize")

......

#+END

Thanks.