使用python往已有内容的PDF文件写入数据
只使用reportlab
库好像没法在已经有内容的PDF页面中写入数据,只能生成一个空的PDF文件再写入。所以配合pdfrw
库来实现的。具体见示例
from reportlab.pdfgen.canvas import Canvas
from pdfrw import PdfReader
from pdfrw.buildxobj import pagexobj
from pdfrw.toreportlab import makerl
from reportlab.pdfbase.ttfonts import TTFont
from reportlab.pdfbase.pdfmetrics import registerFont
def pdf_write(input_file, output_file=None):
text_dic = [
["ABCDEFG HIJKLMN", 90, 757, 12],
["123456789123456789", 90, 738, 10]
]
if not output_file:
output_file = f'{os.path.splitext(input_file)[0]}_new.pdf'
registerFont(TTFont('yh', 'msyh.ttf')) # 设置文字字体
template = PdfReader(input_file)
canvas = Canvas(output_file)
template_obj0 = pagexobj(template.pages[0])
obj0_name = makerl(canvas, template_obj0)
canvas.doForm(obj0_name)
for value in text_dic:
canvas.setFont("yh", value[3]) # 设置字号
canvas.drawString(value[1], value[2], value[0])
canvas.showPage() # 关闭当前页,开始新页
template_obj1 = pagexobj(template.pages[1])
obj1_name = makerl(canvas, template_obj1)
canvas.doForm(obj1_name)
canvas.save()
效果:
写入前
写入后
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