just like scraping data off the web , either from html or json , can the same be done in pdfs using R?

Question

I would like to import tables and table-like data in research articles(pdf files) into R.

example : http://www.bioconductor.org/packages/release/bioc/vignettes/DESeq/inst/doc/DESeq.pdf

thats the pdf taken as an example here. Simple tables to start with. Page 6 of the pdf file I have taken a screenshot to understand the scenario.

How do I extract that table ?