Iron Suite vs DevExpress Office File API

// DevExpress RichEditDocumentServer is the non-visual Word engine powering the DevExpress Rich Edit control.
// NuGet: Install-Package DevExpress.Document.Processor
using DevExpress.XtraRichEdit;

class Program
{
    static void Main()
    {
        using RichEditDocumentServer server = new RichEditDocumentServer();
        server.LoadDocument("welcome-template.docx", DocumentFormat.OpenXml);

        server.Options.MailMerge.DataSource = new[]
        {
            new { CustomerName = "Acme Corp", OrderId = "44213", Total = "$1,498.00" }
        };

        using RichEditDocumentServer output = new RichEditDocumentServer();
        server.MailMerge(output.Document);
        output.SaveDocument("welcome.pdf", DocumentFormat.Pdf);
    }
}

Imports DevExpress.XtraRichEdit

Class Program
    Shared Sub Main()
        Using server As New RichEditDocumentServer()
            server.LoadDocument("welcome-template.docx", DocumentFormat.OpenXml)

            server.Options.MailMerge.DataSource = New Object() {
                New With {
                    .CustomerName = "Acme Corp",
                    .OrderId = "44213",
                    .Total = "$1,498.00"
                }
            }

            Using output As New RichEditDocumentServer()
                server.MailMerge(output.Document)
                output.SaveDocument("welcome.pdf", DocumentFormat.Pdf)
            End Using
        End Using
    End Sub
End Class

// NuGet: Install-Package IronWord
using IronWord;
using IronWord.Models;

class Program
{
    static void Main()
    {
        var doc = new WordDocument();
        var heading = new Paragraph();
        heading.AddChild(new TextRun("Quarterly Report — Q1 2026") { FontSize = 18, Bold = true });
        doc.AddParagraph(heading);

        var body = new Paragraph();
        body.AddChild(new TextRun("Revenue grew 14% quarter-over-quarter."));
        doc.AddParagraph(body);

        doc.SaveAs("report.docx");
    }
}

Imports IronWord
Imports IronWord.Models

Class Program
    Shared Sub Main()
        Dim doc As New WordDocument()
        Dim heading As New Paragraph()
        heading.AddChild(New TextRun("Quarterly Report — Q1 2026") With {.FontSize = 18, .Bold = True})
        doc.AddParagraph(heading)

        Dim body As New Paragraph()
        body.AddChild(New TextRun("Revenue grew 14% quarter-over-quarter."))
        doc.AddParagraph(body)

        doc.SaveAs("report.docx")
    End Sub
End Class

// DevExpress.Spreadsheet provides the non-visual Excel engine with full formula support.
using DevExpress.Spreadsheet;

class Program
{
    static void Main()
    {
        using Workbook book = new Workbook();
        Worksheet sheet = book.Worksheets[0];

        sheet["A1"].Value = "Region";
        sheet["B1"].Value = "Revenue";
        sheet["A2"].Value = "EMEA";
        sheet["B2"].Value = 120000;
        sheet["B4"].Formula = "=SUM(B2:B3)";

        book.CalculationOptions.Mode = CalculationMode.Automatic;
        book.SaveDocument("revenue.xlsx", DocumentFormat.OpenXml);
        book.ExportToPdf("revenue.pdf");
    }
}

Imports DevExpress.Spreadsheet

Module Program
    Sub Main()
        Using book As New Workbook()
            Dim sheet As Worksheet = book.Worksheets(0)

            sheet("A1").Value = "Region"
            sheet("B1").Value = "Revenue"
            sheet("A2").Value = "EMEA"
            sheet("B2").Value = 120000
            sheet("B4").Formula = "=SUM(B2:B3)"

            book.CalculationOptions.Mode = CalculationMode.Automatic
            book.SaveDocument("revenue.xlsx", DocumentFormat.OpenXml)
            book.ExportToPdf("revenue.pdf")
        End Using
    End Sub
End Module

// NuGet: Install-Package IronXL.Excel
using IronXL;

class Program
{
    static void Main()
    {
        WorkBook workbook = WorkBook.Create(ExcelFileFormat.XLSX);
        WorkSheet sheet = workbook.CreateWorkSheet("Sales");

        sheet["A1"].Value = "Product";
        sheet["B1"].Value = "Units";
        sheet["A2"].Value = "Widget A";
        sheet["B2"].Value = 1024;
        sheet["A3"].Value = "Widget B";
        sheet["B3"].Value = 768;
        sheet["B4"].Formula = "=SUM(B2:B3)";

        workbook.EvaluateAll();
        workbook.SaveAs("sales.xlsx");
    }
}

Imports IronXL

Module Program
    Sub Main()
        Dim workbook As WorkBook = WorkBook.Create(ExcelFileFormat.XLSX)
        Dim sheet As WorkSheet = workbook.CreateWorkSheet("Sales")

        sheet("A1").Value = "Product"
        sheet("B1").Value = "Units"
        sheet("A2").Value = "Widget A"
        sheet("B2").Value = 1024
        sheet("A3").Value = "Widget B"
        sheet("B3").Value = 768
        sheet("B4").Formula = "=SUM(B2:B3)"

        workbook.EvaluateAll()
        workbook.SaveAs("sales.xlsx")
    End Sub
End Module

// PdfDocumentProcessor merges, splits, and signs PDFs without Adobe.
using DevExpress.Pdf;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        List<PdfDocumentProcessor> parts = new List<PdfDocumentProcessor>();
        foreach (string path in new[] { "invoice.pdf", "terms.pdf", "appendix.pdf" })
        {
            PdfDocumentProcessor part = new PdfDocumentProcessor();
            part.LoadDocument(path);
            parts.Add(part);
        }

        using PdfDocumentProcessor combined = new PdfDocumentProcessor();
        combined.CreateEmptyDocument("merged.pdf");

        foreach (PdfDocumentProcessor part in parts)
        {
            combined.AppendDocument(part.Document);
            part.Dispose();
        }

        combined.SaveDocument();
    }
}

Imports DevExpress.Pdf
Imports System.Collections.Generic

Module Program
    Sub Main()
        Dim parts As New List(Of PdfDocumentProcessor)()
        For Each path As String In {"invoice.pdf", "terms.pdf", "appendix.pdf"}
            Dim part As New PdfDocumentProcessor()
            part.LoadDocument(path)
            parts.Add(part)
        Next

        Using combined As New PdfDocumentProcessor()
            combined.CreateEmptyDocument("merged.pdf")

            For Each part As PdfDocumentProcessor In parts
                combined.AppendDocument(part.Document)
                part.Dispose()
            Next

            combined.SaveDocument()
        End Using
    End Sub
End Module

// NuGet: Install-Package IronPdf
// Docs: https://ironpdf.com/how-to/merge-or-split-pdfs/
using IronPdf;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        // PdfDocument.Merge accepts an array or params list of PdfDocument objects.
        // Order is preserved, and metadata, bookmarks, and annotations are retained.
        string[] inputs = { "invoice.pdf", "terms.pdf", "appendix.pdf" };

        List<PdfDocument> parts = new List<PdfDocument>();
        foreach (string path in inputs)
            parts.Add(PdfDocument.FromFile(path));

        PdfDocument merged = PdfDocument.Merge(parts.ToArray());
        merged.SaveAs("contract-package.pdf");
    }
}

Imports IronPdf
Imports System.Collections.Generic

Module Program
    Sub Main()
        ' PdfDocument.Merge accepts an array or params list of PdfDocument objects.
        ' Order is preserved, and metadata, bookmarks, and annotations are retained.
        Dim inputs As String() = {"invoice.pdf", "terms.pdf", "appendix.pdf"}

        Dim parts As New List(Of PdfDocument)()
        For Each path As String In inputs
            parts.Add(PdfDocument.FromFile(path))
        Next

        Dim merged As PdfDocument = PdfDocument.Merge(parts.ToArray())
        merged.SaveAs("contract-package.pdf")
    End Sub
End Module

// DevExpress PowerPoint Presentation API creates and edits PPTX server-side.
using DevExpress.Office.Drawing;
using DevExpress.Presentation;

class Program
{
    static void Main()
    {
        using Presentation pres = new Presentation();
        Slide slide = pres.Slides.Add();

        Shape title = slide.Shapes.AddTextBox(50, 50, 600, 60);
        title.TextFrame.Text = "Quarterly Update";

        Shape body = slide.Shapes.AddTextBox(50, 140, 600, 80);
        body.TextFrame.Text = "Generated from .NET — no PowerPoint dependency.";

        pres.SaveDocument("update.pptx", PresentationDocumentFormat.OpenXml);
    }
}

Imports DevExpress.Office.Drawing
Imports DevExpress.Presentation

Class Program
    Shared Sub Main()
        Using pres As New Presentation()
            Dim slide As Slide = pres.Slides.Add()

            Dim title As Shape = slide.Shapes.AddTextBox(50, 50, 600, 60)
            title.TextFrame.Text = "Quarterly Update"

            Dim body As Shape = slide.Shapes.AddTextBox(50, 140, 600, 80)
            body.TextFrame.Text = "Generated from .NET — no PowerPoint dependency."

            pres.SaveDocument("update.pptx", PresentationDocumentFormat.OpenXml)
        End Using
    End Sub
End Class

// NuGet: Install-Package IronPPT
// Docs: https://ironsoftware.com/csharp/ppt/docs/
using IronPPT;
using IronPPT.Models;

class Program
{
    static void Main()
    {
        // PresentationDocument is the entry point for PPTX creation in IronPPT.
        // No Microsoft PowerPoint or Office Interop required.
        PresentationDocument document = new PresentationDocument();

        Slide titleSlide = new Slide();
        titleSlide.AddText("Quarterly Update");
        document.AddSlide(titleSlide);

        Slide bodySlide = new Slide();
        bodySlide.AddText("Generated from .NET, no PowerPoint dependency.");
        document.AddSlide(bodySlide);

        document.Save("update.pptx");
    }
}

Imports IronPPT
Imports IronPPT.Models

Module Program
    Sub Main()
        ' PresentationDocument is the entry point for PPTX creation in IronPPT.
        ' No Microsoft PowerPoint or Office Interop required.
        Dim document As New PresentationDocument()

        Dim titleSlide As New Slide()
        titleSlide.AddText("Quarterly Update")
        document.AddSlide(titleSlide)

        Dim bodySlide As New Slide()
        bodySlide.AddText("Generated from .NET, no PowerPoint dependency.")
        document.AddSlide(bodySlide)

        document.Save("update.pptx")
    End Sub
End Module