代码示例
docxtpl 一个很强大的包,其主要通过对docx文档模板加载,从而对其进行修改,我主要是用docxtpl对图片进行替换。
简单代码如下:
import base64
from docxtpl import docxtemplate
pl = int(input('输出数字:'))
num = 'd:\\py\\testdata\\1.docx'
tpl = docxtemplate(num)
# 定义图片名称位置
context = {
1: '1.jpg',
2: '2.jpg',
}
images = "base64"
tmp_img = "%s.jpg" % (pl)
with open(tmp_img, 'wb') as image_tpl:
data = images.split(',')
imgs_tmp = base64.b64decode(data[1])
image_tpl.write(imgs_tmp)
datas = image_tpl.name
print(datas)
# 判断位置,进行图片替换
if tpl:
tpl.replace_pic(context.get(pl), datas)
print(tpl)
tpl.save("决定1003.docx")
print(tpl)查找图片的位置
如果图片位置不清楚可以使用docx转xml,然后进行解压在目录word\document.xml下面可以找到图片的位置。


方法补充
1.python替换图片的指定区域
要在python中替换图片的指定区域,可以使用pillow库。以下是一个简单的例子,展示如何替换图片的一个区域:
from pil import image
def replace_image_region(src_path, dest_path, region, replacement_image):
# 加载原始图片和替换区域的图片
image = image.open(src_path)
replacement = image.open(replacement_image).convert(image.mode)
# 获取替换区域的大小
region_width, region_height = region[2] - region[0], region[3] - region[1]
# 调整替换图片的大小以匹配替换区域
replacement = replacement.resize((region_width, region_height))
# 通过掩码获取替换区域
mask = image.new("l", (region_width, region_height), 255)
region_image = image.crop(region)
# 应用掩码和替换图片
region_image.paste(replacement, (0, 0), mask)
# 粘贴图片区域回原图
image.paste(region_image, region)
# 保存新图片
image.save(dest_path)使用示例
src_img_path = ‘source.jpg' # 原始图片路径 dest_img_path = ‘destination.jpg' # 替换后保存的图片路径 replacement_img_path = ‘replacement.png' # 替换区域的图片路径 region = (100, 100, 300, 300) # 替换的区域坐标 (左, 上, 右, 下) replace_image_region(src_img_path, dest_img_path, region, replacement_img_path)
2.python-docx替换word中图片的方法
需要先安装python-docx:
pip install python-docx
再使用以下的代码:
import docx
from docx.shared import cm
def replace_img(in_word_path, out_word_path, output_paragraph_idx, new_img_path, height, width):
"""
replace a image in a docx(word) file.
:param in_word_path: the path of the input docx file to be replaced
:param out_word_path: the path of the output docx file
:param new_img_path: the path of the image that will be the new image in the docx file(i.e. one image(the image is assigned by output_paragraph_idx) will be replaced by the image which is in img_path)
:param output_paragraph_idx: the paragraph index of the image in the docx file(the index starts with 0)
:param height: the height of the new image which is in centimeters.
:param width: the width of the new image which is in centimeters..
:return: empty
"""
doc = docx.document(in_word_path)
para = doc.paragraphs[output_paragraph_idx]
para.clear()
pic = para.add_run().add_picture(new_img_path)
pic.height = cm(height)
pic.width = cm(width)
doc.save(out_word_path)
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