Remplacer du texte - Façades

Remplacer du texte dans un fichier PDF existant

Pour remplacer du texte dans un fichier PDF existant, vous devez créer un objet de la classe PdfContentEditor et lier un fichier PDF d’entrée en utilisant la méthode BindPdf. Après cela, vous devez appeler la méthode ReplaceText. Vous devez enregistrer le fichier PDF mis à jour en utilisant la méthode Save de la classe PdfContentEditor. Le code suivant vous montre comment remplacer du texte dans un fichier PDF existant.

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ReplaceText01()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();

    // Instantiate PdfContentEditor object
    using (var editor = new Aspose.Pdf.Facades.PdfContentEditor())
    {
        // Bind PDF document
        editor.BindPdf(dataDir + "sample.pdf");
        editor.ReplaceText("Value", "Label");

        // Save PDF document
        editor.Save(dataDir + "PdfContentEditorDemo01_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ReplaceText01()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();

    // Instantiate PdfContentEditor Object
    using var editor = new Aspose.Pdf.Facades.PdfContentEditor();

    // Bind PDF document
    editor.BindPdf(dataDir + "sample.pdf");
    editor.ReplaceText("Value", "Label");

    // Save PDF document
    editor.Save(dataDir + "PdfContentEditorDemo01_out.pdf");
}

Vérifiez à quoi cela ressemble dans le document original :

Remplacer du texte

Et vérifiez le résultat après avoir remplacé le texte :

Résultat du remplacement de texte

Dans le deuxième exemple, vous verrez comment, en plus de remplacer le texte, vous pouvez également augmenter ou diminuer la taille de la police :

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ReplaceText02()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();

    // Instantiate PdfContentEditor object
    using (var editor = new Aspose.Pdf.Facades.PdfContentEditor())
    {
        // Bind PDF document
        editor.BindPdf(dataDir + "sample.pdf");
        editor.ReplaceText("Value", "Label", 12);

        // Save PDF document
        editor.Save(dataDir + "PdfContentEditorDemo02_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ReplaceText02()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();

    // Instantiate PdfContentEditor object
    using var editor = new Aspose.Pdf.Facades.PdfContentEditor();

    // Bind PDF document
    editor.BindPdf(dataDir + "sample.pdf");
    editor.ReplaceText("Value", "Label", 12);

    // Save PDF document
    editor.Save(dataDir + "PdfContentEditorDemo02_out.pdf");
}

Pour des possibilités plus avancées de travail avec notre texte, nous utiliserons la méthode TextState. Avec cette méthode, nous pouvons rendre le texte gras, italique, coloré, etc.

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ReplaceText03()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();

    // Instantiate PdfContentEditor object
    using (var editor = new Aspose.Pdf.Facades.PdfContentEditor())
    {
        // Bind PDF document
        editor.BindPdf(dataDir + "sample.pdf");

        var textState = new Aspose.Pdf.Text.TextState
        {
            ForegroundColor = Aspose.Pdf.Color.Red,
            FontSize = 12,
        };

        editor.ReplaceText("Value", "Label", textState);

        // Save PDF document
        editor.Save(dataDir + "PdfContentEditorDemo03_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ReplaceText03()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();

    // Instantiate PdfContentEditor object
    using var editor = new Aspose.Pdf.Facades.PdfContentEditor();

    // Bind PDF document
    editor.BindPdf(dataDir + "sample.pdf");

    var textState = new Aspose.Pdf.Text.TextState
    {
        ForegroundColor = Aspose.Pdf.Color.Red,
        FontSize = 12,
    };

    editor.ReplaceText("Value", "Label", textState);

    // Save PDF document
    editor.Save(dataDir + "PdfContentEditorDemo03_out.pdf");
}

Dans le cas où vous devez remplacer tout le texte spécifié dans le document, utilisez le code suivant. C’est-à-dire que le remplacement du texte aura lieu partout où le texte spécifié pour le remplacement sera rencontré, et il comptera également le nombre de tels remplacements.

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ReplaceText04()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();

    // Instantiate PdfContentEditor object
    using (var editor = new Aspose.Pdf.Facades.PdfContentEditor())
    {
        // Bind PDF document
        editor.BindPdf(dataDir + "sample.pdf");
        int count = 0;

        while (editor.ReplaceText("Value", "Label"))
        {
            count++;
        }

        Console.WriteLine($"{count} occurrences have been replaced.");

        // Save PDF document
        editor.Save(dataDir + "PdfContentEditorDemo04_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ReplaceText04()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();

    // Instantiate PdfContentEditor object
    using var editor = new Aspose.Pdf.Facades.PdfContentEditor();

    // Bind PDF document
    editor.BindPdf(dataDir + "sample.pdf");
    int count = 0;

    while (editor.ReplaceText("Value", "Label"))
    {
        count++;
    }

    Console.WriteLine($"{count} occurrences have been replaced.");

    // Save PDF document
    editor.Save(dataDir + "PdfContentEditorDemo04_out.pdf");
}

Remplacer tout le texte

Le code suivant montre comment effectuer tous les remplacements de texte mais sur une page spécifique de votre document.

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ReplaceText05()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();

    // Instantiate PdfContentEditor object
    using (var editor = new Aspose.Pdf.Facades.PdfContentEditor())
    {
        // Bind PDF document
        editor.BindPdf(dataDir + "sample.pdf");
        int count = 0;

        while (editor.ReplaceText("9999", 2, "ABCDE"))
        {
            count++;
        }

        Console.WriteLine($"{count} occurrences have been replaced.");

        // Save PDF document
        editor.Save(dataDir + "PdfContentEditorDemo05_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ReplaceText05()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();

    // Instantiate PdfContentEditor object
    using var editor = new Aspose.Pdf.Facades.PdfContentEditor();

    // Bind PDF document
    editor.BindPdf(dataDir + "sample.pdf");
    int count = 0;

    while (editor.ReplaceText("9999", 2, "ABCDE"))
    {
        count++;
    }

    Console.WriteLine($"{count} occurrences have been replaced.");

    // Save PDF document
    editor.Save(dataDir + "PdfContentEditorDemo05_out.pdf");
}

Dans le prochain extrait de code, nous montrerons comment remplacer, par exemple, un nombre donné par les lettres dont nous avons besoin.

.NET Core 3.1

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ReplaceText06()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();

    // Instantiate PdfContentEditor object
    using (var editor = new Aspose.Pdf.Facades.PdfContentEditor
           {
               ReplaceTextStrategy = new Aspose.Pdf.Facades.ReplaceTextStrategy
               {
                   IsRegularExpressionUsed = true,
                   ReplaceScope = Aspose.Pdf.Facades.ReplaceTextStrategy.Scope.ReplaceAll
               }
           })
    {
        // Bind PDF document
        editor.BindPdf(dataDir + "sample.pdf");
        editor.ReplaceText("\\d{4}", "ABCDE");

        // Save PDF document
        editor.Save(dataDir + "PdfContentEditorDemo06_out.pdf");
    }
}

.NET 8

// For complete examples and data files, visit https://github.com/aspose-pdf/Aspose.PDF-for-.NET
private static void ReplaceText06()
{
    // The path to the documents directory
    var dataDir = RunExamples.GetDataDir_AsposePdf_WorkingDocuments();

    // Instantiate PdfContentEditor object
    using var editor = new Aspose.Pdf.Facades.PdfContentEditor
    {
        ReplaceTextStrategy = new Aspose.Pdf.Facades.ReplaceTextStrategy
        {
            IsRegularExpressionUsed = true,
            ReplaceScope = Aspose.Pdf.Facades.ReplaceTextStrategy.Scope.ReplaceAll
        }
    };

    // Bind PDF document
    editor.BindPdf(dataDir + "sample.pdf");
    editor.ReplaceText("\\d{4}", "ABCDE");

    // Save PDF document
    editor.Save(dataDir + "PdfContentEditorDemo06_out.pdf");
}

Extraire une image et changer la position d'un tampon Travailler avec des images en utilisant PdfContentEditor

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