There's a command-line interface too! Note: Camelot only works with text-based PDFs and not scanned documents. (As Tabula explains, "If you can click and drag to select text in your table in a PDF ...
Fields for the given key ($2) in the given hash ($3). The hash looks like follows: 1/1 → strings at the level 1 of the 1st object 1/2 → strings at the level 1 of the 2nd object … 2/1 → strings at 2nd ...