使用PDFBox将Byte[]打印到PDF

Question

final byte[] image = this.restTemplate.getForObject(
        this.imagesUrl + cableReference + this.format,
        byte[].class
);

Answer 1

（这适用于2.0版，不适用于1.8版）

我不知道你说的缩略图格式是什么意思，但试试看：

    final byte[] image = ... // your code
    ByteArrayInputStream bais = new ByteArrayInputStream(image);
    BufferedImage bim = ImageIO.read(bais);
    PDImageXObject pdImage = LosslessFactory.createFromImage(doc, bim);

可以通过使用

PDImageXObject.createFromFileByContent()

    PDDocument doc = new PDDocument();
    try
    {
        PDPage page = new PDPage();
        doc.addPage(page);

        PDPageContentStream contents = new PDPageContentStream(doc, page);

        // draw the image at full size at (x=20, y=20)
        contents.drawImage(pdImage, 20, 20);

        // to draw the image at half size at (x=20, y=20) use
        // contents.drawImage(pdImage, 20, 20, pdImage.getWidth() / 2, pdImage.getHeight() / 2);

        contents.close();
        doc.save(pdfPath);
    }
    finally
    {
        doc.close();
    }