将图像放在PDF上

Question

如何将图像放在特定坐标位置的现有PDF文件上.pdf表示具有一页的图纸.图像将缩放.我正在检查ReportLab但找不到答案.谢谢.

Answer 1

已经5年了,我认为这些答案需要一些TLC.这是一个完整的解决方案.

以下是使用Python 2.7测试的

安装依赖项

pip install reportlab 
pip install pypdf2

做神奇的事

from reportlab.pdfgen import canvas
from PyPDF2 import PdfFileWriter, PdfFileReader

# Create the watermark from an image
c = canvas.Canvas('watermark.pdf')

# Draw the image at x, y. I positioned the x,y to be where i like here
c.drawImage('test.png', 15, 720)

# Add some custom text for good measure
c.drawString(15, 720,"Hello World")
c.save()

# Get the watermark file you just created
watermark = PdfFileReader(open("watermark.pdf", "rb"))

# Get our files ready
output_file = PdfFileWriter()
input_file = PdfFileReader(open("test2.pdf", "rb"))

# Number of pages in input document
page_count = input_file.getNumPages()

# Go through all the input file pages to add a watermark to them
for page_number in range(page_count):
    print "Watermarking page {} of {}".format(page_number, page_count)
    # merge the watermark with the page
    input_page = input_file.getPage(page_number)
    input_page.mergePage(watermark.getPage(0))
    # add page from input file to output document
    output_file.addPage(input_page)

# finally, write "output" to document-output.pdf
with open("document-output.pdf", "wb") as outputStream:
    output_file.write(outputStream)

参考文献:

pypdf的新家:http://mstamy2.github.io/PyPDF2/

Reportlab文档:http: //www.reportlab.com/apis/reportlab/2.4/pdfgen.html

Reportlab完整的用户指南:https://www.reportlab.com/docs/reportlab-userguide.pdf

Answer 2

http://pybrary.net/pyPdf/:

from pyPdf import PdfFileWriter, PdfFileReader

output = PdfFileWriter()
input1 = PdfFileReader(file("document1.pdf", "rb"))
watermark = PdfFileReader(file("watermark.pdf", "rb"))

input1.mergePage(watermark.getPage(0))

# finally, write "output" to document-output.pdf
outputStream = file("document-output.pdf", "wb")
output.write(input1)
outputStream.close()

我想就是这样watermark,请参阅手册以获得更好的想法

Answer 3

我将ReportLab(http://www.reportlab.com/software/opensource/rl-toolkit/download/)和pyPDF(http://pybrary.net/pyPdf/)结合起来直接插入图像,而无需生成PDF前面:

from pyPdf import PdfFileWriter, PdfFileReader
from reportlab.pdfgen import canvas
from StringIO import StringIO


# Using ReportLab to insert image into PDF
imgTemp = StringIO()
imgDoc = canvas.Canvas(imgTemp)

# Draw image on Canvas and save PDF in buffer
imgPath = "path/to/img.png"
imgDoc.drawImage(imgPath, 399, 760, 160, 160)    ## at (399,760) with size 160x160
imgDoc.save()

# Use PyPDF to merge the image-PDF into the template
page = PdfFileReader(file("document.pdf","rb")).getPage(0)
overlay = PdfFileReader(StringIO(imgTemp.getvalue())).getPage(0)
page.mergePage(overlay)

#Save the result
output = PdfFileWriter()
output.addPage(page)
output.write(file("output.pdf","w"))

Answer 4

感谢之前的答案。我使用 python3.4 的方式和PyPDF2<3.0.0

# -*- coding: utf-8 -*-
from io import BytesIO
from PyPDF2 import PdfFileWriter, PdfFileReader
from reportlab.pdfgen import canvas
from reportlab.lib.pagesizes import A4

def gen_pdf():
    # there are 66 slides (1.jpg, 2.jpg, 3.jpg...)
    path = 'slades/{0}.jpg'
    pdf = PdfFileWriter()

    for num in range(1, 67):  # for each slide
        # Using ReportLab Canvas to insert image into PDF
        imgTemp = BytesIO()
        imgDoc = canvas.Canvas(imgTemp, pagesize=A4)
        # Draw image on Canvas and save PDF in buffer
        imgDoc.drawImage(path.format(num), -25, -45)
        # x, y - start position
        # in my case -25, -45 needed
        imgDoc.save()
        # Use PyPDF to merge the image-PDF into the template
        pdf.addPage(PdfFileReader(BytesIO(imgTemp.getvalue())).getPage(0))

    pdf.write(open("output.pdf","wb"))


if __name__ == '__main__':
    gen_pdf()

Answer 5

使用PyMuPDF可以很容易地做到这一点，无需合并两个 PDF：

import fitz

src_pdf_filename = 'source.pdf'
dst_pdf_filename = 'destination.pdf'
img_filename = 'barcode.jpg'

# http://pymupdf.readthedocs.io/en/latest/rect/
# Set position and size according to your needs
img_rect = fitz.Rect(100, 100, 120, 120)

document = fitz.open(src_pdf_filename)

# We'll put image on first page only but you could put it elsewhere
page = document[0]
page.insertImage(img_rect, filename=img_filename)

# See http://pymupdf.readthedocs.io/en/latest/document/#Document.save and
# http://pymupdf.readthedocs.io/en/latest/document/#Document.saveIncr for
# additional parameters, especially if you want to overwrite existing PDF
# instead of writing new PDF
document.save(dst_pdf_filename)

document.close()