java - 使用 Aspose Pdf for java 从字节数组创建 PDF

Question

我正在尝试使用字节数组生成 pdf 文件，我正在使用以下代码：

    byte[] input = content.getBytes();
    ByteArrayOutputStream output = new ByteArrayOutputStream();
    Document pdfDoc = new Document(new ByteArrayInputStream(input));
    pdfDoc .save(output, SaveFormat.Pdf);

但我收到此错误：

Incorect file format com.aspose.pdf.exceptions.InvalidPdfFileFormatException: Incorect file format
at com.aspose.pdf.internal.p116.z6.m1(Unknown Source)
at com.aspose.pdf.internal.p75.z26$z1.deserialize(Unknown Source)
at com.aspose.pdf.internal.p115.z8.deserialize(Unknown Source)
at com.aspose.pdf.internal.p109.z17.<init>(Unknown Source)
at com.aspose.pdf.internal.p109.z17.<init>(Unknown Source)
at com.aspose.pdf.internal.p79.z2.m1(Unknown Source)
at com.aspose.pdf.internal.p109.z16.<init>(Unknown Source)
at com.aspose.pdf.internal.p79.z2.m5(Unknown Source)
at com.aspose.pdf.internal.p24.z13.m2(Unknown Source)
at com.aspose.pdf.internal.p24.z13.<init>(Unknown Source)
at com.aspose.pdf.ADocument.m1(Unknown Source)
at com.aspose.pdf.ADocument.<init>(Unknown Source)
at com.aspose.pdf.ADocument.<init>(Unknown Source)
at com.aspose.pdf.Document.<init>(Unknown Source)

请问你能帮我解决这个问题吗？