python pdfminer 将pdf文件转换为一大块字符串，单词之间没有空格

使用Python的pdfminer库可以很方便地将PDF文件转换为一大块字符串。然后，我们可以利用自然语言处理技术生成一篇文章。下面是一个示例代码，演示了如何实现这个过程：

python
import io
import pdfminer
from pdfminer.converter import TextConverter
from pdfminer.pdfinterp import PDFResourceManager, PDFPageInterpreter
from pdfminer.pdfpage import PDFPage
def convert_pdf_to_text(pdf_path):
    resource_manager = PDFResourceManager()
    string_io = io.StringIO()
    codec = 'utf-8'
    laparams = pdfminer.layout.LAParams()
    device = TextConverter(resource_manager, string_io, codec=codec, laparams=laparams)
    with open(pdf_path, 'rb') as file:
        interpreter = PDFPageInterpreter(resource_manager, device)
        for page in PDFPage.get_pages(file):
            interpreter.process_page(page)
    text = string_io.getvalue()
    device.close()
    string_io.close()
    return text
pdf_path = 'path_to_your_pdf_file.pdf'
text = convert_pdf_to_text(pdf_path)
# 在这里根据需要对text进行处理和分析，生成文章的内容
# 分段处理
paragraphs = text.split('\n\n')
# 生成文章的标题和内容
title = "Python PDF转换工具及自然语言生成文章示例"
article = "
" + title + "
"
for paragraph in paragraphs:
    # 在中间段落添加标题
    if paragraph == paragraphs[len(paragraphs)//2]:
        article += "中间段落标题
"
    article += paragraph + "
"
print(article)