如何在浏览器中打开生成的PDF文件? [英] How to open a generated PDF file in browser?
问题描述
我编写了Pdf合并程序,该合并程序将原始文件与水印合并.
I have written a Pdf merger which merges an original file with a watermark.
我现在要做的是通过Django视图在浏览器中打开"document-output.pdf"文件.我已经检查了Django的相关文章,但是由于我的方法相对不同,所以我没有直接使用响应对象作为其文件"来创建PDF对象,所以我有点迷失了.
What I want to do now is to open 'document-output.pdf' file in the browser by a Django view. I already checked Django's related articles, but since my approach is relatively different, I don't directly create the PDF object, using the response object as its "file.", so I am kind of lost.
那么,如何在Django视图中进行操作?
So, how can I do is in a Django view?
from pyPdf import PdfFileWriter, PdfFileReader
from reportlab.pdfgen.canvas import Canvas
from reportlab.pdfbase import pdfmetrics
from reportlab.pdfbase.ttfonts import TTFont
output = PdfFileWriter()
input = PdfFileReader(file('file.pdf', 'rb'))
# get number of pages
num_pages = input.getNumPages()
# register new chinese font
pdfmetrics.registerFont(TTFont('chinese_font','/usr/share/fonts/truetype/mac/LiHeiPro.ttf'))
# generate watermark on the fly
pdf = Canvas("watermark.pdf")
pdf.setFont("chinese_font", 12)
pdf.setStrokeColorRGB(0.5, 1, 0)
pdf.drawString(10, 830, "你好")
pdf.save()
# put on watermark
watermark = PdfFileReader(file('watermark.pdf', 'rb'))
page1 = input.getPage(0)
page1.mergePage(watermark.getPage(0))
# add processed pdf page
output.addPage(page1)
# then, add rest of pages
for num in range(1, num_pages):
output.addPage(input.getPage(num))
outputStream = file("document-output.pdf", "wb")
output.write(outputStream)
outputStream.close()
推荐答案
我知道它是较老的文章,但是我们可以使用html的embed标记来实现这种功能.例如:
I know its an older post but we can use the embed tag of html to implement this kind of functionality. For e.g.:
<embed height="100%" width="100%" name="plugin" src="filename.pdf" type="application/pdf">
因此,在您的情况下,您可以简单地使用render向响应发送响应,如下所示:
So in your case, you can simply send the response using render to response as:
return render_to_response("abc.html",{"filename":filename})
和在abc.html中,您可以将该文件名(带有路径)放在embed标签中,如上所述.
and in the abc.html you can put this filename (with the path) in the embed tag, as mentioned above.
希望这会有所帮助.
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