How to use the Reportlab module in Python?

ReportLab is a Python library used for creating PDF files. It offers a set of tools and functions for creating and modifying PDF documents. Here is a simple example demonstrating how to use ReportLab to generate a basic PDF file.

Firstly, you need to install the ReportLab library. You can install it using the pip command.

pip install reportlab

Then, you can use the following code to generate a simple PDF file:

from reportlab.pdfgen import canvas

def generate_pdf():
    # 创建一个新的PDF文档
    c = canvas.Canvas("example.pdf")
    
    # 设置字体和字号
    c.setFont("Helvetica", 12)
    
    # 写入文本
    c.drawString(100, 700, "Hello, World!")
    
    # 画一条直线
    c.line(100, 695, 500, 695)
    
    # 保存PDF文件
    c.save()

# 调用函数生成PDF文件
generate_pdf()

The code above generates a PDF document named example.pdf using the canvas module. It specifies the font and font size, writes the text “Hello, World!” on the page, draws a straight line using the line function, and finally saves the PDF file using the save function.

You can use the ReportLab library to generate more complex PDF files based on your own needs and document requirements. This library offers many additional features, such as adding images, tables, links, and more. For detailed usage methods and examples, you can refer to the official ReportLab documentation at: https://www.reportlab.com/docs/reportlab-userguide.pdf