python操作PDF的几种常见方法

# 安装模块pip install pdfplumber

import pdfplumberimport os

path = os.getcwd()filepath = os.path.join(path,"原则.pdf")
with pdfplumber.open(filepath) as pdf:    for i in range(len(pdf.pages)):        page = pdf.pages[i]        print(page.extract_text())

pip install pdfminer3kpip install pdfminer.six

from pdfminer.pdfparser import PDFParserfrom pdfminer.pdfdocument import PDFDocument
fp = open("原则.pdf","rb")pdfparser = PDFParser(fp)doc = PDFDocument(pdfparser)

from pdfminer.pdfinterp import PDFResourceManagerfrom pdfminer.pdfinterp import PDFPageInterpreterfrom pdfminer.converter import PDFPageAggregatorfrom pdfminer.layout import LAParams
#pdf资源管理器resource = PDFResourceManager()
#参数分析器laparam  = LAParams()
#页面聚合器device = PDFPageAggregator(resource,laparams=laparam)
#页面解释器interpreter  = PDFPageInterpreter(resource,device)

from pdfminer.pdfpage import PDFPage
for page in PDFPage.create_pages(doc):    #使用页面解释器读取    interpreter.process_page(page)        #使用聚合器来获取内容    layout = device.get_result()        for out in layout:        #需要注意的是pdf文件不仅文字，还有图片等内容，        # 为了避免错误，我们判断是否为文本        if(hasattr(out,'get_text')):            print(out.get_text())

import osimport pandas as pdimport pdfplumber
path = os.getcwd()
pdf = pdfplumber.open(os.path.join(path,"table.pdf"))p0 = pdf.pages[0]table = p0.extract_table()df = pd.DataFrame(table[1:],columns=table[0])
print(df)

from PyPDF2 import PdfWriter,PdfReader

ef split_pdf(infn,outfn,start,end):    '''    :param infn 源pdf路径    :param outfn 目的pdf路径    :param start 开始页面    :param end 结束页面    return    '''    pdf_output = PdfWriter()    pdf_input = PdfReader(open(infn,"rb"))    page_count = len(pdf_input.pages)        if end  > page_count:        end = page_counte        #分割pdf页面，输出新的内容    for i in range(start,end):        pdf_output.add_page(pdf_input.pages[i])        pdf_output.write(open(outfn,'wb'))


split_pdf("原则.pdf","原则2.pdf",5,10)

from PyPDF2 import PdfMerger,PdfReader
def merge_pdf(filenames,merge_name,password=None):    '''    :param filenames 传递一个文件列表    :param merge_name 合并后的文件    :param password 对应的密码列表    return    '''    files = len(filenames)    pdf_merge = PdfMerger(False)        for i in range(files):        pdf_reader = PdfReader(open(filenames[i],"rb"))        if(not pdf_reader):            return        pdf_merge.append(pdf_reader)        pdf_merge.write(open(merge_name,"wb"))


merge_pdf(['原则1.pdf','原则2.pdf'],'原则3.pdf')

pip install pdfkit

import pdfkit
def url_to_pdf(url, to_file):    # 将wkhtmltopdf.exe程序绝对路径传入config对象    path_wkthmltopdf = r'D:\tool\wkhtmltopdf\bin\wkhtmltopdf.exe'    config = pdfkit.configuration(wkhtmltopdf=path_wkthmltopdf)    # 生成pdf文件，to_file为文件路径    pdfkit.from_url(url, to_file, configuration=config)
    print('完成')
url_to_pdf('https://www.baidu.com','D:baidu.pdf')

#避免乱码在html文件中，<meta charset="UTF-8">def html_to_pdf(html, to_file):    # 将wkhtmltopdf.exe程序绝对路径传入config对象    path_wkthmltopdf = r'D:\tool\wkhtmltopdf\bin\wkhtmltopdf.exe'    config = pdfkit.configuration(wkhtmltopdf=path_wkthmltopdf)    # 生成pdf文件，to_file为文件路径    pdfkit.from_file(html, to_file, configuration=config)
html_to_pdf('sample.html','out_2.pdf')

'''将字符串生成pdf文件'''def str_to_pdf(string, to_file):    # 将wkhtmltopdf.exe程序绝对路径传入config对象    path_wkthmltopdf = r'D:\tool\wkhtmltopdf\bin\wkhtmltopdf.exe'    config = pdfkit.configuration(wkhtmltopdf=path_wkthmltopdf)    # 生成pdf文件，to_file为文件路径    pdfkit.from_string(string, to_file, configuration=config)    print('完成')
str_to_pdf('This is test!','out_3.pdf')