代码整合

from PIL import Image
import os

class do_it(object):
    def __init__(self):
        self.download="./pdf/"
        # 保存目录
    def create_img_pdf(self,file_name,ouput_pdf):
        page = Image.new('RGB', (2480, 3508), 'white')
        image=Image.open(file_name)
        i_w,i_h=image.size
        if i_w>i_h:
            i_n_w=2000
            i_n_h=int(i_h*2000/i_w)
        else:
            i_n_h=3000
            i_n_w=int(i_w*3000/i_h)
        n_img=image.resize((i_n_w,i_n_h))
        page.paste(n_img,(100,100))
        page.save(ouput_pdf,"PDF", resolution=100.0)
    def topdf(self,nfile):
        #保存在当前的pdf文件夹
        # nfile必须独一无二
        com="libreoffice --convert-to pdf:writer_pdf_Export "+nfile+" --outdir "+self.download
        os.system(com)
        name=nfile[nfile.rfind('/')+1:nfile.rfind('.')]+".pdf"
        newa=self.download+name
        return newa
    def combine(self,file_list,out_file):
        file_info=""
        for i in file_list:
            file_info=file_info+" "+i
        com="pdftk "+file_info+" cat output "+out_file
        os.system(com)