python使用pdfminer解析页面内容，得到内容的详细坐标_python的importerror 导入pdfminer.page

官方文档地址：https://pdfminersix.readthedocs.io/en/latest/reference/index.html

github地址：https://github.com/pdfminer/pdfminer.six

pdfminer与pdf基本概念：https://euske.github.io/pdfminer/programming.html

使用pdfminer需要首先安装：

pip install pdfminer.six
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示例

import requests
import io
from pdfminer.pdfdocument import PDFDocument
from pdfminer.pdfpage import PDFPage
from pdfminer.pdfparser import PDFParser
from pdfminer.pdfinterp import PDFResourceManager, PDFPageInterpreter
from pdfminer.converter import PDFPageAggregator
from pdfminer.layout import LAParams, LTTextBox, LTText, LTChar, LTAnno, LTTextLine


def parse_line_layout(layout):
    """解析页面内容，一行一行的解析"""
    # bbox:
    # x0：从页面左侧到框左边缘的距离。
    # y0：从页面底部到框的下边缘的距离。
    # x1：从页面左侧到方框右边缘的距离。
    # y1：从页面底部到框的上边缘的距离
    for textbox in layout:
        if isinstance(textbox, LTTextBox) or isinstance(textbox, LTTextLine):
            for char in textbox:
                print("坐标 x:", char.bbox[0], "y:", char.bbox[3], " ||| ", char.get_text().strip(), )


def parse_words_layout(layout):
    """解析页面内容，一个单词一个单词的解析"""
    x, y, text = -1, -1, ''
    for textbox in layout:
        if isinstance(textbox, LTText):
            for line in textbox:
                for char in line:
                    # If the char is a line-break or an empty space, the word is complete
                    if isinstance(char, LTAnno) or char.get_text() == ' ':
                        if x != -1:
                            print("坐标 x:", x, "y:", y, " ||| ", text)
                        x, y, text = -1, -1, ''
                    elif isinstance(char, LTChar):
                        text += char.get_text()
                        if x == -1:
                            x, y, = char.bbox[0], char.bbox[3]
    if x != -1:
        print('At %r is text: %s' % ((x, y), text))


def parse_char_layout(layout):
    """解析页面内容，一个字母一个字母的解析"""
    for textbox in layout:
        if isinstance(textbox, LTText):
            for line in textbox:
                for char in line:
                    # If the char is a line-break or an empty space, the word is complete
                    if isinstance(char, LTAnno) or char.get_text() == ' ':
                        pass
                    elif isinstance(char, LTChar):
                        print("坐标 x:", char.bbox[0], "y:", char.bbox[3], " ||| ", char.get_text())


if __name__ == '__main__':
    req = requests.get("http://www.africau.edu/images/default/sample.pdf")
    fp = io.BytesIO(req.content)
    # fp = open('../../ocr_pdf/0a0c3b458b66d5e525551ec5b40df1c6.pdf', 'rb')
    parser = PDFParser(fp)  # 用文件对象来创建一个pdf文档分析器
    doc: PDFDocument = PDFDocument(parser)  # 创建pdf文档

    rsrcmgr = PDFResourceManager()  # 创建PDF，资源管理器，来共享资源
    # 创建一个PDF设备对象
    laparams = LAParams()
    device = PDFPageAggregator(rsrcmgr, laparams=laparams)
    # 创建一个PDF解释其对象
    interpreter = PDFPageInterpreter(rsrcmgr, device)
    # 循环遍历列表，每次处理一个page内容
    # doc.get_pages() 获取page列表
    interpreter = PDFPageInterpreter(rsrcmgr, device)
    # 处理文档对象中每一页的内容
    # doc.get_pages() 获取page列表
    # 循环遍历列表，每次处理一个page的内容
    # 这里layout是一个LTPage对象 里面存放着 这个page解析出的各种对象 一般包括LTTextBox, LTFigure, LTImage, LTTextBoxHorizontal 等等 想要获取文本就获得对象的text属性，
    for page in PDFPage.create_pages(doc):
        print('================ 新页面 ================')
        interpreter.process_page(page)
        layout = device.get_result()
        parse_line_layout(layout)  # 解析句子
        parse_words_layout(layout)  # 解析单词
        parse_char_layout(layout)  # 解析字母
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运行parse_line_layout的结果：

坐标 x: 57.375 y: 743.691  |||  A Simple PDF File
坐标 x: 69.25 y: 696.5379999999999  |||  This is a small demonstration .pdf file -
坐标 x: 69.25 y: 672.6339999999999  |||  just for use in the Virtual Mechanics tutorials. More text. And more
坐标 x: 69.25 y: 660.6819999999999  |||  text. And more text. And more text. And more text.
坐标 x: 69.25 y: 636.7779999999999  |||  And more text. And more text. And more text. And more text. And more
坐标 x: 69.25 y: 624.8259999999999  |||  text. And more text. Boring, zzzzz. And more text. And more text. And
坐标 x: 69.25 y: 612.8739999999999  |||  more text. And more text. And more text. And more text. And more text.
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运行parse_words_layout的结果：

坐标 x: 64.881 y: 743.691  |||  A
坐标 x: 90.396 y: 743.691  |||  Simple
坐标 x: 180.414 y: 743.691  |||  PDF
坐标 x: 241.92 y: 743.691  |||  File
坐标 x: 72.03 y: 696.5379999999999  |||  This
坐标 x: 93.7 y: 696.5379999999999  |||  is
坐标 x: 103.7 y: 696.5379999999999  |||  a
坐标 x: 112.04 y: 696.5379999999999  |||  small
坐标 x: 138.15 y: 696.5379999999999  |||  demonstration
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运行parse_char_layout的结果：

坐标 x: 64.881 y: 743.691  |||  A
坐标 x: 90.396 y: 743.691  |||  S
坐标 x: 108.405 y: 743.691  |||  i
坐标 x: 114.399 y: 743.691  |||  m
坐标 x: 136.89 y: 743.691  |||  p
坐标 x: 151.902 y: 743.691  |||  l
坐标 x: 157.89600000000002 y: 743.691  |||  e
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