通过python在PDF中添加条形码和二维码的代码详解

目录

• 引言
• 所需Python库
• Python 在PDF 文档中添加条形码
• Python 在PDF文档中添加二维码

from spire.pdf.common import *
from spire.pdf import *

# 创建PDF文件
pdf = PdfDocument()
# 添加页面
page = pdf.Pages.Add(PdfPageSize.A4())

y = 20.0
# 在页面上绘制文本
font = PdfTrueTypeFont("Arial", 12.0, PdfFontStyle.Bold, True)
text = PdfTextWidget()
text.Font = font
text.Text = "Codabar:"
result = text.Draw(page, 0.0, y)
page = result.Page
y = result.Bounds.Bottom + 2

# 创建PdfCodabarBarcode对象，并将Codabar条码绘制到页面上
Codabar = PdfCodabarBarcode("00:12-3456/7890")
Codabar.BarcodeToTextGapHeight = 1.0
Codabar.EnableCheckDigit = True
Codabar.ShowCheckDigit = True
Codabar.TextDisplayLocation = TextLocation.Bottom
Codabar.TextColor = PdfRGBColor(Color.get_Green())
Codabar.Draw(page, PointF(0.0, y))
y = Codabar.Bounds.Bottom + 8

# 在页面上绘制文本
text.Text = "Code39:"
result = text.Draw(page, 0.0, y)
page = result.Page
y = result.Bounds.Bottom + 2

# 创建PdfCode39Barcode对象，并将Code39条码绘制到页面上
Code39 = PdfCode39Barcode("ABC-012689")
Code39.BarcodeToTextGapHeight = 1.0
Code39.TextDisplayLocation = TextLocation.Bottom
Code39.TextColor = PdfRGBColor(Color.get_Green())
Code39.Draw(page, PointF(0.0, y))

# 保存PDF文档
pdf.SaveToFile("PDF中添加条形码.pdf")
pdf.Close()

from spire.pdf.common import *
from spire.pdf import *
from spire.barcode import *

# 创建BarcodeSettings对象
settings = BarcodeSettings()

# 设置条码类型为QRCode
settings.Type = BarCodeType.QRCode
# 设置条码数据、宽度、纠错级别等
settings.Data = "ABCD12345"
settings.Data2D = "ABCD12345"
settings.X = 2
settings.QRCodeECL = QRCodeECL.M
settings.ShowTextOnBottom = True

# 生成二维码图片
barCodeGenerator = BarCodeGenerator(settings)
QRimage = barCodeGenerator.GenerateImage()

# 将二维码图片保存为PNG文件
with open("QRCode.png", "wb") as file:
    file.write(QRimage)

# 创建PDF文档
pdf = PdfDocument()
# 添加页面
page = pdf.Pages.Add()

# 将二维码图片绘制到PDF页面上
pdfImage = PdfImage.FromFile("QRCode.png")
page.Canvas.DrawImage(pdfImage, 0.0, 20.0)

# 保存PDF文档
pdf.SaveToFile("Pdf中添加二维码.pdf")
pdf.Close()