我们如何使用python从pdf中提取特定值？

Question

有没有办法使用 NLP 或 python 库从 pdf 中获取特定文本

Answer 1

First you install PyPDF2 library using below command:

pip install PyPDF2

type this code:

Import PyPDF2
mypdf=open(”/home/Desktop/sample.pdf”, mode=”rb”)
pdf_document=PyPDF2.PdfFileReader(mypdf) `

Now creating pdfobject as pdf_document, how much page in pdf then used pdf_document.numPages

first_page=pdf_document.getPage(0) print( first_page.extractText() )

Now you can read pdf file.

if you have any misunderstanding in my answer, please refer to the below link:

Python for NLP: Working with Text and PDF Files

Answer 2

You can use either use tika, textract or PyPDF2

from tika import parser
data = parser.from_file('your_pdf.pdf')
print(data['text'])

Answer 3

Try pdfreader to extract texts (plain and containing PDF operators) from PDF document

Here is a sample code extracting all the above from all document pages.

from pdfreader import SimplePDFViewer, PageDoesNotExist

fd = open(you_pdf_file_name, "rb")
viewer = SimplePDFViewer(fd)

plain_text = ""
pdf_markdown = ""
try:
    while True:
        viewer.render()
        pdf_markdown += viewer.canvas.text_content
        plain_text += "".join(viewer.canvas.strings)
        viewer.next()
except PageDoesNotExist:
    pass