Question

我使用iTextSharp来合并字节数组中的两个文档，如下所示：

using (MemoryStream ms = new MemoryStream())
using (Document doc = new Document())
using (PdfSmartCopy copy = new PdfSmartCopy(doc, ms))
{
    // Open document
    doc.Open();

    // Create reader from bytes
    using (PdfReader reader = new PdfReader(pdf1.DocumentBytes))
    {
        //Add the entire document instead of page-by-page
        copy.AddDocument(reader);
    }

    // Create reader from bytes
    using (PdfReader reader = new PdfReader(pdf2.DocumentBytes))
    {
        //Add the entire document instead of page-by-page
        copy.AddDocument(reader);
    }

    // Close document
    doc.Close();

    // Return array
    return ms.ToArray();
}

由于许多更改，我无法将其转换为iText 7。有人会这样给我正确的方向吗？提前非常感谢！

Answer 1

经过一些研究，我弄清楚了。这是解决方案（iText7），以防任何人在转换代码时也遇到麻烦：

using (MemoryStream ms = new MemoryStream())
using (PdfDocument pdf = new PdfDocument(new PdfWriter(ms).SetSmartMode(true)))
{
    // Create reader from bytes
    using (MemoryStream memoryStream = new MemoryStream(pdf1.DocumentBytes))
    {
        // Create reader from bytes
        using (PdfReader reader = new PdfReader(memoryStream))
        {
            PdfDocument srcDoc = new PdfDocument(reader);
            srcDoc.CopyPagesTo(1, srcDoc.GetNumberOfPages(), pdf);
        }
    }

    // Create reader from bytes
    using (MemoryStream memoryStream = new MemoryStream(pdf2.DocumentBytes))
    {
        // Create reader from bytes
        using (PdfReader reader = new PdfReader(memoryStream))
        {
            PdfDocument srcDoc = new PdfDocument(reader);
            srcDoc.CopyPagesTo(1, srcDoc.GetNumberOfPages(), pdf);
        }
    }

    // Close pdf
    pdf.Close();

    // Return array
    return ms.ToArray();
}

iText 7合并字节数组中的文档

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