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我正在使用 PyMuPDF 替换图像。但是当我有一个映射到它们的 bbox 坐标的图像字典时,只有第一页中的图像被替换。如何让字典中的所有图像都被替换?这是我的代码:'bbval' 是这样的字典: bbval dictionary

import fitz

src_pdf_filename = file_path
dst_pdf_filename = '/content/dest.pdf' #destination pdf
img_filename = '/content/logo.jpg' #the image that will be replacing the old ones


test=[]
val=0
for k in bbval:
  test.append(str(bbval[i])[5:int(str(bbval[i]).index(str(bbval[i])[-1]))])
  string=test[val].split(',')
  img_rect = fitz.Rect(float(string[0]),float(string[1]),float(string[2]),float(string[3]))#str(bbval[i])[5:int(str(bbval[i]).index(str(bbval[i])[-1]))]
  #print(bbval[k])
  document = fitz.open(src_pdf_filename)


  
  page = document[int(k[k.index('e')+1:k.index('-')])]
  #print('page: ',page)
  page.clean_contents()

  page.insertImage(img_rect, filename=img_filename,keep_proportion=False)
  val+=1

document.save(dst_pdf_filename)

document.close()
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