使用 Pypdf2 和 Reportlab 合并 pdf 页面时文本旋转

Question

我正在尝试合并两个页面一份来自 reportlab，其中包含我想要的文字，另一份是我的来源 pdf

但是当我合并这两页时，我的文字旋转了 90 度

使用报告实验室创建的 Pdf -> Overlay Created using Reportlab

与源 pdf 合并时 -> Source Pdf

我用过的代码：

from PyPDF2 import PdfFileWriter, PdfFileReader
import io
from reportlab.pdfgen import canvas
from reportlab.lib.units import inch

packet = io.BytesIO()
c = canvas.Canvas(packet)
c.drawString(0,0,"Hello World")
c.save()
packet.seek(0)

packet_pdf = PdfFileReader(packet)
input_pdf = PdfFileReader(open("Source.pdf", "rb"))

output = PdfFileWriter()
page = input_pdf.getPage(0)
page.mergePage(packet_pdf.getPage(0))
output.addPage(page)

outputStream = open("destination.pdf", "wb")
output.write(outputStream)
outputStream.close()

参考：Add text to Existing PDF using Python

Answer 1

参考这个并创建了自己的解决方案 -> Python PyPDF2 merge rotated pages

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

page_to_merge = 0 #Refers to the First page of PDF 
xcoor = 250 #To be changed according to your pdf
ycoor = 650 #To be changed according to your pdf

input_pdf = PdfFileReader(open("Source.pdf", "rb"))
page_count = input_pdf.getNumPages()
inputpdf_page_to_be_merged = input_pdf.getPage(page_to_merge)

packet = io.BytesIO()
c = Canvas(packet,pagesize=(inputpdf_page_to_be_merged.mediaBox.getWidth(),inputpdf_page_to_be_merged.mediaBox.getHeight()))
c.drawString(xcoor,ycoor,"Hello World")
c.save()
packet.seek(0)

overlay_pdf = PdfFileReader(packet)
overlay = overlay_pdf.getPage(0)

output = PdfFileWriter()

for PAGE in range(page_count):
    if PAGE == page_to_merge:
        inputpdf_page_to_be_merged.mergeRotatedTranslatedPage(overlay, 
                inputpdf_page_to_be_merged.get('/Rotate') or 0, 
                overlay.mediaBox.getWidth()/2, overlay.mediaBox.getWidth()/2)
        output.addPage(inputpdf_page_to_be_merged)
    
    else:
        Page_in_pdf = input_pdf.getPage(PAGE)
        output.addPage(Page_in_pdf)

outputStream = open("destination.pdf", "wb")
output.write(outputStream)
outputStream.close()

使用 Pypdf2 和 Reportlab 合并 pdf 页面时文本旋转

Text rotated when merging pdf pages using Pypdf2 and Reportlab

python

pdf

image

reportlab

pypdf2