WebView2とIronPDFの比較：技術比較ガイド

PDFNet.Initialize("YOUR_APRYSE_LICENSE_KEY");
using (PDFDoc doc = new PDFDoc("input.pdf"))
{
    doc.InitSecurityHandler();
    PDFDraw draw = new PDFDraw();
    draw.SetDPI(150);
    int pageNum = 1;
    for (PageIterator itr = doc.GetPageIterator(); itr.HasNext(); itr.Next())
    {
        draw.Export(itr.Current(), $"page_{pageNum}.png", "PNG");
        pageNum++;
    }
}
PDFNet.Terminate();

Imports PDFNet

PDFNet.Initialize("YOUR_APRYSE_LICENSE_KEY")
Using doc As New PDFDoc("input.pdf")
    doc.InitSecurityHandler()
    Dim draw As New PDFDraw()
    draw.SetDPI(150)
    Dim pageNum As Integer = 1
    For itr As PageIterator = doc.GetPageIterator() To itr.HasNext() Step itr.Next()
        draw.Export(itr.Current(), $"page_{pageNum}.png", "PNG")
        pageNum += 1
    Next
End Using
PDFNet.Terminate()

var renderer = new ChromePdfRenderer();
string html = @"<h1>Invoice 2026-0428</h1><p>Customer: Acme Corp</p><p>Total due: $1,240.00</p>";
using var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("invoice.pdf");

Dim renderer As New ChromePdfRenderer()
Dim html As String = "<h1>Invoice 2026-0428</h1><p>Customer: Acme Corp</p><p>Total due: $1,240.00</p>"
Using pdf = renderer.RenderHtmlAsPdf(html)
    pdf.SaveAs("invoice.pdf")
End Using

PDFNet.Initialize("YOUR_APRYSE_LICENSE_KEY");
using (PDFDoc doc = new PDFDoc())
{
    pdftron.PDF.Convert.OfficeToPDF(doc, "contract.docx", null);
    doc.Save("contract.pdf", SDFDoc.SaveOptions.e_linearized);
}
PDFNet.Terminate();

Imports pdftron
Imports pdftron.PDF

PDFNet.Initialize("YOUR_APRYSE_LICENSE_KEY")
Using doc As New PDFDoc()
    pdftron.PDF.Convert.OfficeToPDF(doc, "contract.docx", Nothing)
    doc.Save("contract.pdf", SDFDoc.SaveOptions.e_linearized)
End Using
PDFNet.Terminate()

var doc = new WordDocument();
var heading = new Paragraph();
heading.AddChild(new TextRun("Quarterly Report — Q1 2026") { FontSize = 18, Bold = true });
doc.AddParagraph(heading);
doc.SaveAs("report.docx");

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)
doc.SaveAs("report.docx")

PDFNet.Initialize("YOUR_APRYSE_LICENSE_KEY");
PDFNet.AddResourceSearchPath(@".\OCR_Module");
if (!OCRModule.IsModuleAvailable()) return;
using (PDFDoc doc = new PDFDoc())
{
    OCROptions opts = new OCROptions();
    opts.AddLang("eng");
    OCRModule.ImageToPDF(doc, "scan.tiff", opts);
    doc.Save("scan_searchable.pdf", SDFDoc.SaveOptions.e_linearized);
}

Imports pdftron
Imports pdftron.PDF
Imports pdftron.SDF

PDFNet.Initialize("YOUR_APRYSE_LICENSE_KEY")
PDFNet.AddResourceSearchPath(".\OCR_Module")
If Not OCRModule.IsModuleAvailable() Then Return

Using doc As New PDFDoc()
    Dim opts As New OCROptions()
    opts.AddLang("eng")
    OCRModule.ImageToPDF(doc, "scan.tiff", opts)
    doc.Save("scan_searchable.pdf", SDFDoc.SaveOptions.e_linearized)
End Using

var ocr = new IronTesseract();
using var input = new OcrInput("scanned-document.png");
input.Deskew();
input.DeNoise();
var result = ocr.Read(input);
Console.WriteLine($"Confidence: {result.Confidence}");

Imports IronTesseract

Dim ocr As New IronTesseract()
Using input As New OcrInput("scanned-document.png")
    input.Deskew()
    input.DeNoise()
    Dim result = ocr.Read(input)
    Console.WriteLine($"Confidence: {result.Confidence}")
End Using

using (PDFDoc doc = new PDFDoc("contract.pdf"))
{
    doc.InitSecurityHandler();
    DigitalSignatureField sigField = doc.CreateDigitalSignatureField("Signer1");
    sigField.SignOnNextSave("signer.pfx", "pfx_password");
    Page page1 = doc.GetPage(1);
    SignatureWidget widget = SignatureWidget.Create(doc, new Rect(100, 100, 300, 160), sigField);
    page1.AnnotPushBack(widget);
    doc.Save("contract_signed.pdf", SDFDoc.SaveOptions.e_incremental);
}

Imports PDFNet

Using doc As New PDFDoc("contract.pdf")
    doc.InitSecurityHandler()
    Dim sigField As DigitalSignatureField = doc.CreateDigitalSignatureField("Signer1")
    sigField.SignOnNextSave("signer.pfx", "pfx_password")
    Dim page1 As Page = doc.GetPage(1)
    Dim widget As SignatureWidget = SignatureWidget.Create(doc, New Rect(100, 100, 300, 160), sigField)
    page1.AnnotPushBack(widget)
    doc.Save("contract_signed.pdf", SDFDoc.SaveOptions.e_incremental)
End Using

using (PDFDoc doc = new PDFDoc("input.pdf"))
{
    doc.InitSecurityHandler();
    List<Redactor.Redaction> redactions = new List<Redactor.Redaction>();
    redactions.Add(new Redactor.Redaction(1, new Rect(100, 700, 400, 720), false, "REDACTED"));
    Redactor.AppOptions appOpts = new Redactor.AppOptions();
    appOpts.SetBorder(true);
    Redactor.Redact(doc, redactions, appOpts, false);
    doc.Save("input_redacted.pdf", SDFDoc.SaveOptions.e_linearized);
}

Imports PDFNet

Using doc As New PDFDoc("input.pdf")
    doc.InitSecurityHandler()
    Dim redactions As New List(Of Redactor.Redaction)()
    redactions.Add(New Redactor.Redaction(1, New Rect(100, 700, 400, 720), False, "REDACTED"))
    Dim appOpts As New Redactor.AppOptions()
    appOpts.SetBorder(True)
    Redactor.Redact(doc, redactions, appOpts, False)
    doc.Save("input_redacted.pdf", SDFDoc.SaveOptions.e_linearized)
End Using

// NuGet: Install-Package IronPdf
// Docs: https://ironpdf.com/how-to/redact-text/
using IronPdf;

class Program
{
    static void Main()
    {
        PdfDocument pdf = PdfDocument.FromFile("employee-record.pdf");

        // RedactTextOnAllPages performs true redaction:
        // the text is removed from the PDF structure, not just covered visually.
        pdf.RedactTextOnAllPages("Jane Doe");
        pdf.RedactTextOnAllPages("123-45-6789");
        pdf.RedactTextOnAllPages("EMP-44213");

        pdf.SaveAs("employee-record-redacted.pdf");
    }
}

Imports IronPdf

Class Program
    Shared Sub Main()
        Dim pdf As PdfDocument = PdfDocument.FromFile("employee-record.pdf")

        ' RedactTextOnAllPages performs true redaction:
        ' the text is removed from the PDF structure, not just covered visually.
        pdf.RedactTextOnAllPages("Jane Doe")
        pdf.RedactTextOnAllPages("123-45-6789")
        pdf.RedactTextOnAllPages("EMP-44213")

        pdf.SaveAs("employee-record-redacted.pdf")
    End Sub
End Class