How to Convert PDF to PDF A in C# Using IronPDF

Name: IronPDF
Brand: Iron Software
Availability: InStock
Rating: 4.87 (307 reviews)

ByChipego Kalinda

May 25, 2024

Updated June 2, 2025

In this comprehensive tutorial, viewers learn how to convert PDF files to PDFA format using the Iron PDF library in a C# environment. The process begins with the installation of Iron PDF via the NuGet package manager and the utilization of its classes and methods. Users are guided through loading an existing PDF file, converting it to PDFA, and saving it. The tutorial also covers rendering a web page into a PDF before converting it to PDFA using the Chrome PDF renderer, with a focus on setting appropriate timeout and render delay options to handle dynamic content effectively. After successfully executing the project, the tutorial demonstrates validating the generated PDFA files with the Vera PDF validator to ensure compliance and reliability. The session concludes with an encouragement to explore Iron PDF further through a free trial, stressing its efficiency for creating PDFA documents.

// Import necessary namespaces
using IronPdf;

class ConvertToPdfA
{
    static void Main()
    {
        // Path to the input PDF file
        string inputPdfPath = "input.pdf";

        // Load the PDF document
        var pdfDocument = PdfDocument.FromFile(inputPdfPath);

        // Convert the loaded PDF document to PDF/A format
        pdfDocument.RasterizeToPdfAPdf();

        // Path to save the converted PDF/A file
        string outputPdfAPath = "output_pdfa.pdf";

        // Save the converted PDF/A document
        pdfDocument.SaveAs(outputPdfAPath);

        Console.WriteLine("PDF has been successfully converted to PDFA and saved.");
    }
}

// Import necessary namespaces
using IronPdf;

class ConvertToPdfA
{
    static void Main()
    {
        // Path to the input PDF file
        string inputPdfPath = "input.pdf";

        // Load the PDF document
        var pdfDocument = PdfDocument.FromFile(inputPdfPath);

        // Convert the loaded PDF document to PDF/A format
        pdfDocument.RasterizeToPdfAPdf();

        // Path to save the converted PDF/A file
        string outputPdfAPath = "output_pdfa.pdf";

        // Save the converted PDF/A document
        pdfDocument.SaveAs(outputPdfAPath);

        Console.WriteLine("PDF has been successfully converted to PDFA and saved.");
    }
}

' Import necessary namespaces
Imports IronPdf

Friend Class ConvertToPdfA
	Shared Sub Main()
		' Path to the input PDF file
		Dim inputPdfPath As String = "input.pdf"

		' Load the PDF document
		Dim pdfDocument = PdfDocument.FromFile(inputPdfPath)

		' Convert the loaded PDF document to PDF/A format
		pdfDocument.RasterizeToPdfAPdf()

		' Path to save the converted PDF/A file
		Dim outputPdfAPath As String = "output_pdfa.pdf"

		' Save the converted PDF/A document
		pdfDocument.SaveAs(outputPdfAPath)

		Console.WriteLine("PDF has been successfully converted to PDFA and saved.")
	End Sub
End Class

$vbLabelText $csharpLabel

// Import necessary namespaces
using IronPdf;

class WebPageToPdf
{
    static void Main()
    {
        // Chrome Renderer allows rendering of web pages to PDF
        var Renderer = new ChromePdfRenderer();

        // Set timeout and additional delay to handle dynamic content
        Renderer.RenderingOptions.RenderDelay = 500;
        Renderer.RenderingOptions.Timeout = 30000; // Timeout in milliseconds

        // Render a web page to PDF
        var pdf = Renderer.RenderUrlAsPdf("https://example.com");

        // Convert the rendered PDF to PDF/A format
        pdf.RasterizeToPdfAPdf();

        // Save the PDF/A document
        pdf.SaveAs("webpage_pdfa.pdf");

        Console.WriteLine("Web page has been rendered and saved as PDFA.");
    }
}

// Import necessary namespaces
using IronPdf;

class WebPageToPdf
{
    static void Main()
    {
        // Chrome Renderer allows rendering of web pages to PDF
        var Renderer = new ChromePdfRenderer();

        // Set timeout and additional delay to handle dynamic content
        Renderer.RenderingOptions.RenderDelay = 500;
        Renderer.RenderingOptions.Timeout = 30000; // Timeout in milliseconds

        // Render a web page to PDF
        var pdf = Renderer.RenderUrlAsPdf("https://example.com");

        // Convert the rendered PDF to PDF/A format
        pdf.RasterizeToPdfAPdf();

        // Save the PDF/A document
        pdf.SaveAs("webpage_pdfa.pdf");

        Console.WriteLine("Web page has been rendered and saved as PDFA.");
    }
}

' Import necessary namespaces
Imports IronPdf

Friend Class WebPageToPdf
	Shared Sub Main()
		' Chrome Renderer allows rendering of web pages to PDF
		Dim Renderer = New ChromePdfRenderer()

		' Set timeout and additional delay to handle dynamic content
		Renderer.RenderingOptions.RenderDelay = 500
		Renderer.RenderingOptions.Timeout = 30000 ' Timeout in milliseconds

		' Render a web page to PDF
		Dim pdf = Renderer.RenderUrlAsPdf("https://example.com")

		' Convert the rendered PDF to PDF/A format
		pdf.RasterizeToPdfAPdf()

		' Save the PDF/A document
		pdf.SaveAs("webpage_pdfa.pdf")

		Console.WriteLine("Web page has been rendered and saved as PDFA.")
	End Sub
End Class

$vbLabelText $csharpLabel

Further Reading: How to Export PDF/A or PDF/A-3 Format Documents in C#

Chipego Kalinda

Chat with engineering team now

Software Engineer

Chipego has a natural skill for listening that helps him to comprehend customer issues, and offer intelligent solutions. He joined the Iron Software team in 2023, after studying a Bachelor of Science in Information Technology. IronPDF and IronOCR are the two products Chipego has been focusing on, but his knowledge of all products is growing daily, as he finds new ways to support customers. He enjoys how collaborative life is at Iron Software, with team members from across the company bringing their varied experience to contribute to effective, innovative solutions. When Chipego is away from his desk, he can often be found enjoying a good book or playing football.

< PREVIOUS
How to Export PDF UA Format Documents in C#

NEXT >
How to Protect PDF Files with Passwords and Permissions in C#