本文实例讲述了Python解析并读取PDF文件内容的方法。分享给大家供大家参考,具体如下:
一、问题描述
利用python,去读取pdf文本内容。
二、效果
三、运行环境
python2.7
四、需要安装的库
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pip install pdfminer |
五、实现源代码
代码1(win64)
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# coding=utf-8 import sys reload (sys) sys.setdefaultencoding( 'utf-8' ) import time time1 = time.time() import os.path from pdfminer.pdfparser import PDFParser,PDFDocument from pdfminer.pdfinterp import PDFResourceManager, PDFPageInterpreter from pdfminer.converter import PDFPageAggregator from pdfminer.layout import LTTextBoxHorizontal,LAParams from pdfminer.pdfinterp import PDFTextExtractionNotAllowed result = [] class CPdf2TxtManager(): def __init__( self ): ''''' Constructor ''' def changePdfToText( self , filePath): file = open (path, 'rb' ) # 以二进制读模式打开 #用文件对象来创建一个pdf文档分析器 praser = PDFParser( file ) # 创建一个PDF文档 doc = PDFDocument() # 连接分析器 与文档对象 praser.set_document(doc) doc.set_parser(praser) # 提供初始化密码 # 如果没有密码 就创建一个空的字符串 doc.initialize() # 检测文档是否提供txt转换,不提供就忽略 if not doc.is_extractable: raise PDFTextExtractionNotAllowed # 创建PDf 资源管理器 来管理共享资源 rsrcmgr = PDFResourceManager() # 创建一个PDF设备对象 laparams = LAParams() device = PDFPageAggregator(rsrcmgr, laparams = laparams) # 创建一个PDF解释器对象 interpreter = PDFPageInterpreter(rsrcmgr, device) pdfStr = '' # 循环遍历列表,每次处理一个page的内容 for page in doc.get_pages(): # doc.get_pages() 获取page列表 interpreter.process_page(page) # 接受该页面的LTPage对象 layout = device.get_result() for x in layout: if hasattr (x, "get_text" ): # print x.get_text() result.append(x.get_text()) fileNames = os.path.splitext(filePath) with open (fileNames[ 0 ] + '.txt' , 'wb' ) as f: results = x.get_text() print (results) f.write(results + '\n' ) if __name__ = = '__main__' : ''''' 解析pdf 文本,保存到txt文件中 ''' path = u 'C:/data3.pdf' pdf2TxtManager = CPdf2TxtManager() pdf2TxtManager.changePdfToText(path) # print result[0] time2 = time.time() print u 'ok,解析pdf结束!' print u '总共耗时:' + str (time2 - time1) + 's' |
代码2(win32)
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# coding=utf-8 import sys reload (sys) sys.setdefaultencoding( 'utf-8' ) import time time1 = time.time() import os.path from pdfminer.pdfinterp import PDFResourceManager, PDFPageInterpreter from pdfminer.converter import PDFPageAggregator from pdfminer.layout import LAParams from pdfminer.pdfpage import PDFTextExtractionNotAllowed from pdfminer.pdfparser import PDFParser from pdfminer.pdfdocument import PDFDocument from pdfminer.pdfpage import PDFPage result = [] class CPdf2TxtManager(): def __init__( self ): ''''' Constructor ''' def changePdfToText( self , filePath): file = open (path, 'rb' ) # 以二进制读模式打开 #用文件对象来创建一个pdf文档分析器 praser = PDFParser( file ) # 创建一个PDF文档 doc = PDFDocument(praser) # 检测文档是否提供txt转换,不提供就忽略 if not doc.is_extractable: raise PDFTextExtractionNotAllowed # 创建PDf 资源管理器 来管理共享资源 rsrcmgr = PDFResourceManager() # 创建一个PDF设备对象 laparams = LAParams() device = PDFPageAggregator(rsrcmgr, laparams = laparams) # 创建一个PDF解释器对象 interpreter = PDFPageInterpreter(rsrcmgr, device) pdfStr = '' # 循环遍历列表,每次处理一个page的内容 for page in PDFPage.create_pages(doc): # doc.get_pages() 获取page列表 interpreter.process_page(page) # 接受该页面的LTPage对象 layout = device.get_result() for x in layout: if hasattr (x, "get_text" ): # print x.get_text() result.append(x.get_text()) fileNames = os.path.splitext(filePath) with open (fileNames[ 0 ] + '.txt' , 'wb' ) as f: results = x.get_text() print (results) f.write(results + '\n' ) if __name__ = = '__main__' : ''''' 解析pdf 文本,保存到txt文件中 ''' path = u 'C:/36.pdf' pdf2TxtManager = CPdf2TxtManager() pdf2TxtManager.changePdfToText(path) # print result[0] time2 = time.time() print u 'ok,解析pdf结束!' print u '总共耗时:' + str (time2 - time1) + 's' |
希望本文所述对大家Python程序设计有所帮助。
原文链接:https://blog.csdn.net/u013421629/article/details/72764737