python分割pdf

import fitz
 
PDF_path = "D:Users/FengZH2/Desktop/EM算法.pdf"
imgs_save_path = "D:Users/FengZH2/Desktop/test/"
 
def PDF_to_imgs(PDF_path, save_path):
    # 打开PDF文件，生成一个对象
    doc = fitz.open(PDF_path)
 
    # 将PDF文件的每一页都转化为图片
    for pg in range(doc.pageCount):
        page = doc[pg]
        rotate = int(0)
        # 每个尺寸的缩放系数为2，这将为我们生成分辨率提高4倍的图像。
        zoom_x = 2
        zoom_y = 2
        trans = fitz.Matrix(zoom_x, zoom_y).preRotate(rotate)
        pm = page.getPixmap(matrix=trans, alpha=False)
        pm.writePNG(save_path + '%s.png' % pg)
        
                
PDF_to_imgs(PDF_path, imgs_save_path)