Let's create a simple PDF document from a DOCX file. By the way, this code shows - how to load an existing document and save it as a PDF/A compliant version.
                PdfSaveOptions options = new PdfSaveOptions()
            {
                // PdfComliance supports: PDF/A, PDF/1.5, etc.
                Compliance = PdfCompliance.PDF_A1a
            };
            If you need to load an existing document (*.docx, *.rtf, *.pdf, *.html, *.txt, etc) and save it as a PDF/A
            compliant version, you need to point a path for this file:
            
                // Path to a loadable document.
            string loadPath = @"..\..\example.pdf";
            //string loadPath = @"..\..\example.html";
            //string loadPath = @"..\..\example.rtf";
            As the result, you will get the fully compatible PDF/A document
Complete code
using System.IO;
using SautinSoft.Document;
namespace Sample
{
    class Sample
    {
        static void Main(string[] args)
        {
            // Get your free trial key here:   
            // https://sautinsoft.com/start-for-free/
            LoadAndSaveAsPDFA();
        }
        
        /// <summary>
        /// Load an existing document (*.docx, *.rtf, *.pdf, *.html, *.txt, *.pdf) and save it as a PDF/A compliant version. 
        /// </summary>
        /// <remarks>
        /// Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/create-and-save-document-in-pdf-a-format-net-csharp-vb.php
        /// </remarks>
        public static void LoadAndSaveAsPDFA()
        {
            // Path to a loadable document.
            string loadPath = @"..\..\..\example.docx";
            DocumentCore dc = DocumentCore.Load(loadPath);
            PdfSaveOptions options = new PdfSaveOptions()
            {
                // PdfComliance supports: PDF/A, PDF/1.5, etc.
                Compliance = PdfCompliance.PDF_A1a
            };
            string savePath = Path.ChangeExtension(loadPath, ".pdf");
            dc.Save(savePath, options);
            // Open the result for demonstration purposes.
            System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(savePath) { UseShellExecute = true });
        }
    }
}Imports System
Imports System.IO
Imports SautinSoft.Document
Module Sample
    Sub Main()
        LoadAndSaveAsPDFA()
    End Sub
    ''' Get your free trial key here:   
    ''' https://sautinsoft.com/start-for-free/
    ''' <summary>
    ''' Load an existing document (*.docx, *.rtf, *.pdf, *.html, *.txt, *.pdf) and save it as a PDF/A compliant version. 
    ''' </summary>
    ''' <remarks>
    ''' Details: https://www.sautinsoft.com/products/document/help/net/developer-guide/create-and-save-document-in-pdf-a-format-net-csharp-vb.php
    ''' </remarks>
    Sub LoadAndSaveAsPDFA()
        ' Path to a loadable document.
        Dim loadPath As String = "..\..\..\example.docx"
        Dim dc As DocumentCore = DocumentCore.Load(loadPath)
        Dim options As New PdfSaveOptions() With {.Compliance = PdfCompliance.PDF_A1a}
        Dim savePath As String = Path.ChangeExtension(loadPath, ".pdf")
        dc.Save(savePath, options)
        ' Open the result for demonstration purposes.
        System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(savePath) With {.UseShellExecute = True})
    End Sub
End ModuleIf you need a new code example or have a question: email us at support@sautinsoft.com or ask at Online Chat (right-bottom corner of this page) or use the Form below: