如何在.NET庫中壓縮PDF文件

using IronPdf;

class Program
{
    static void Main(string[] args)
    {
        // HTML content to convert
        string html = "<h1>This Document was Converted using IronPDF</h1><p>This document was converted from HTML content</p>";

        // Instantiate the ChromePdfRenderer class
        ChromePdfRenderer renderer = new ChromePdfRenderer();

        // Render the HTML content into a PDF document
        PdfDocument pdf = renderer.RenderHtmlAsPdf(html);

        // Save the rendered PDF document to a file
        pdf.SaveAs("html-to-pdf.pdf");
    }
}

Imports IronPdf

Friend Class Program
	Shared Sub Main(ByVal args() As String)
		' HTML content to convert
		Dim html As String = "<h1>This Document was Converted using IronPDF</h1><p>This document was converted from HTML content</p>"

		' Instantiate the ChromePdfRenderer class
		Dim renderer As New ChromePdfRenderer()

		' Render the HTML content into a PDF document
		Dim pdf As PdfDocument = renderer.RenderHtmlAsPdf(html)

		' Save the rendered PDF document to a file
		pdf.SaveAs("html-to-pdf.pdf")
	End Sub
End Class

using System;
using IronPdf;

class Program
{
    static void Main(string[] args)
    {
        // Instantiate the ChromePdfRenderer
        ChromePdfRenderer renderer = new ChromePdfRenderer();

        // Render the URL content into a PDF
        PdfDocument pdf = renderer.RenderUrlAsPdf("https://www.nuget.org/packages/IronPdf/");

        // Save the PDF to a file
        pdf.SaveAs("url-to-pdf.pdf");
    }
}

Imports System
Imports IronPdf

Friend Class Program
	Shared Sub Main(ByVal args() As String)
		' Instantiate the ChromePdfRenderer
		Dim renderer As New ChromePdfRenderer()

		' Render the URL content into a PDF
		Dim pdf As PdfDocument = renderer.RenderUrlAsPdf("https://www.nuget.org/packages/IronPdf/")

		' Save the PDF to a file
		pdf.SaveAs("url-to-pdf.pdf")
	End Sub
End Class

using System.Collections.Generic;
using IronPdf;

class Program
{
    static void Main(string[] args)
    {
        // Define image file paths
        string jpgFile = "image-jpg.jpg";
        string pngFile = "image-png.png";
        string gifFile = "image-gif.gif";

        // Convert each image to a separate PDF document
        PdfDocument pdfA = ImageToPdfConverter.ImageToPdf(gifFile);
        PdfDocument pdfB = ImageToPdfConverter.ImageToPdf(pngFile);
        PdfDocument pdfC = ImageToPdfConverter.ImageToPdf(jpgFile);

        // Combine all the PDFs into a single document
        List<PdfDocument> pdfFiles = new List<PdfDocument> { pdfA, pdfB, pdfC };
        PdfDocument mergedPdf = PdfDocument.Merge(pdfFiles);

        // Save the merged PDF document to a file
        mergedPdf.SaveAs("images-to-pdf.pdf");
    }
}

Imports System.Collections.Generic
Imports IronPdf

Friend Class Program
	Shared Sub Main(ByVal args() As String)
		' Define image file paths
		Dim jpgFile As String = "image-jpg.jpg"
		Dim pngFile As String = "image-png.png"
		Dim gifFile As String = "image-gif.gif"

		' Convert each image to a separate PDF document
		Dim pdfA As PdfDocument = ImageToPdfConverter.ImageToPdf(gifFile)
		Dim pdfB As PdfDocument = ImageToPdfConverter.ImageToPdf(pngFile)
		Dim pdfC As PdfDocument = ImageToPdfConverter.ImageToPdf(jpgFile)

		' Combine all the PDFs into a single document
		Dim pdfFiles As New List(Of PdfDocument) From {pdfA, pdfB, pdfC}
		Dim mergedPdf As PdfDocument = PdfDocument.Merge(pdfFiles)

		' Save the merged PDF document to a file
		mergedPdf.SaveAs("images-to-pdf.pdf")
	End Sub
End Class