PDF库.NET转换器

# Use the NuGet package manager to install IronPDF
nuget install IronPdf

// C# Program to create PDF from TextBox input using IronPDF
using IronPdf;
using System.Windows.Forms;

namespace readpdf
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        // Event handler for the button click
        private void button1_Click(object sender, System.EventArgs e)
        {
            // Create a ChromePdfRenderer object to convert HTML to PDF
            var HtmlLine = new ChromePdfRenderer();

            // Retrieve the text from the TextBox
            string text = textBox1.Text;

            // Render the HTML as a PDF, wrapping the text in an <h1> tag
            using var pdf = HtmlLine.RenderHtmlAsPdf("<h1>" + text + "</h1>");

            // Save the PDF to a file called "custom.pdf"
            pdf.SaveAs("custom.pdf");

            // Show a confirmation message to the user
            MessageBox.Show("Done!");
        }
    }
}

' C# Program to create PDF from TextBox input using IronPDF
Imports IronPdf
Imports System.Windows.Forms

Namespace readpdf
	Partial Public Class Form1
		Inherits Form

		Public Sub New()
			InitializeComponent()
		End Sub

		' Event handler for the button click
		Private Sub button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
			' Create a ChromePdfRenderer object to convert HTML to PDF
			Dim HtmlLine = New ChromePdfRenderer()

			' Retrieve the text from the TextBox
'INSTANT VB NOTE: The variable text was renamed since Visual Basic does not handle local variables named the same as class members well:
			Dim text_Conflict As String = textBox1.Text

			' Render the HTML as a PDF, wrapping the text in an <h1> tag
			Dim pdf = HtmlLine.RenderHtmlAsPdf("<h1>" & text_Conflict & "</h1>")

			' Save the PDF to a file called "custom.pdf"
			pdf.SaveAs("custom.pdf")

			' Show a confirmation message to the user
			MessageBox.Show("Done!")
		End Sub
	End Class
End Namespace