How to use PDFminer.six with python 3?

问题

I want to use pdfminer.six which is for python 3 to extract pdf. The problem is there is no good documentation at all and no source code example on how to use it.

I have already tried some code from StackOverflow but did not work. My code is as below.

from pdfminer.converter import TextConverter
from pdfminer.layout import LAParams
from pdfminer.pdfpage import PDFPage
from io import StringIO

def convert_pdf_to_txt(path):
    rsrcmgr = PDFResourceManager()
    retstr = StringIO()
    codec = 'utf-8'
    laparams = LAParams()
    device = TextConverter(rsrcmgr, retstr, codec=codec, laparams=laparams)
    fp = open(path, 'rb')
    interpreter = PDFPageInterpreter(rsrcmgr, device)
    password = ""
    maxpages = 0
    caching = True
    pagenos=set()

    for page in PDFPage.get_pages(fp, pagenos, maxpages=maxpages, password=password,caching=caching, check_extractable=True):
        interpreter.process_page(page)

    text = retstr.getvalue()

    fp.close()
    device.close()
    retstr.close()
    return text

I want some code example on how to use this to get data from pdfs.

回答1:

Install pdfminer.six or pdfminer3 (https://github.com/gwk/pdfminer3/) install: pip install pdfminer3 I switched to pdfminer3 when I upgraded to 3.7 from 3.6 I use on ubuntu and macos with python 3.7.3

pdfminer3 comes with two handy tools: pdf2txt.py and dumppdf.py examine the source. Fairly small and easy to understand.

Following is a working example (once the location of the pdf file is added)

from pdfminer3.layout import LAParams, LTTextBox
from pdfminer3.pdfpage import PDFPage
from pdfminer3.pdfinterp import PDFResourceManager
from pdfminer3.pdfinterp import PDFPageInterpreter
from pdfminer3.converter import PDFPageAggregator

resource_manager = PDFResourceManager()
fake_file_handle = io.StringIO()
converter = TextConverter(resource_manager, fake_file_handle)
page_interpreter = PDFPageInterpreter(resource_manager, converter)

with open('/path/to/file.pdf', 'rb') as fh:

    for page in PDFPage.get_pages(fh,
                                  caching=True,
                                  check_extractable=True):
        page_interpreter.process_page(page)

    text = fake_file_handle.getvalue()

# close open handles
converter.close()
fake_file_handle.close()

print(text)

来源：https://stackoverflow.com/questions/56494070/how-to-use-pdfminer-six-with-python-3

标签

python-3.x

pypdf2

pdfminer