ocr_pdfR_fr: ocr a pdf file via R with multicore support
In Atan1988/alvision: reading documents using computer vision

wrap of the ocr pdf with multicore support

ocr_pdfR_fr(
  pdf_file,
  hmax = 300,
  cropped_tm_dir,
  azure_creds,
  box_push_to_az = F,
  box_highlight = F,
  remove_fl = F,
  dpi = 400,
  main_cl = 1,
  sub_cl = 3
)

`pdf_file`	pdf file location
`hmax`	maximum box height to include
`cropped_tm_dir`	temporary dir for cropped img
`azure_creds`	azure credential
`box_push_to_az`	whether to push the individual boxes to azure
`box_highlight`	whether to highlight boxes, this allows the check to use results from the main push if it seems to work well
`remove_fl`	whether to remove files written by the box level push
`dpi`	dpi of the converted images
`main_cl`	number of cores for main processes
`sub_cl`	number of cores for sub processes