java-将BufferedImage添加到PDFBox 2.0文档

第一次海报,和我一起…

我有两个问题.首先,我想知道如何使用BufferedImage将图像添加到PDFBox 2.0文档.在这里提出的问题：Add BufferedImage to PDFBox document

此后,PDFBox整体排除了PDJpeg类和xobject部分.

其次,如果有人已经问过这个问题并且已经回答了,但是答案已过时；更新/联系这两个问题的最佳方法是什么？ (我没有任何要点,所以我无法发表评论).

解决方法:

PDFBox has since excluded the PDJpeg class and the xobject section as a whole.

在版本2的开发过程中,确实存在很多重构(以及重构,重构等),而且这种重构通常不仅仅局限于软件包的更改.通常,现在某些功能在哪里并不明显.

但是,可以将基本功能(如将BufferedImage添加到文档中)视为不会丢失.

现在有JPEGFactory,它提供了从BufferedImage创建图像XObject的方法,尤其是：

/**
 * Creates a new JPEG Image XObject from a Buffered Image.
 * @param document the document where the image will be created
 * @param image the buffered image to embed
 * @return a new Image XObject
 * @throws IOException if the JPEG data cannot be written
 */
public static PDImageXObject createFromImage(PDDocument document, BufferedImage image)

/**
 * Creates a new JPEG Image XObject from a Buffered Image and a given quality.
 * The image will be created at 72 DPI.
 * @param document the document where the image will be created
 * @param image the buffered image to embed
 * @param quality the desired JPEG compression quality
 * @return a new Image XObject
 * @throws IOException if the JPEG data cannot be written
 */
public static PDImageXObject createFromImage(PDDocument document, BufferedImage image, float quality)

/**
 * Creates a new JPEG Image XObject from a Buffered Image, a given quality and DPI.
 * @param document the document where the image will be created
 * @param image the buffered image to embed
 * @param quality the desired JPEG compression quality
 * @param dpi the desired DPI (resolution) of the JPEG
 * @return a new Image XObject
 * @throws IOException if the JPEG data cannot be written
 */
public static PDImageXObject createFromImage(PDDocument document, BufferedImage image, float quality, int dpi)

标签：jfreechart,bufferedimage,pdfbox,java
来源： https://codeday.me/bug/20191027/1942442.html