Java PDFBox-从图像生成PDF的问题
我正在尝试从JPEG、BMP类型的图像生成PDF,但我得到的右侧图像的一部分总是被切断。我正在使用默认的windows picture Sunset.jpg之一 代码如下:Java PDFBox-从图像生成PDF的问题,java,pdfbox,Java,Pdfbox,我正在尝试从JPEG、BMP类型的图像生成PDF,但我得到的右侧图像的一部分总是被切断。我正在使用默认的windows picture Sunset.jpg之一 代码如下: import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO; import javax.imageio.strea
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.imageio.stream.FileImageInputStream;
import org.apache.pdfbox.exceptions.COSVisitorException;
import org.apache.pdfbox.io.RandomAccessFile;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.edit.PDPageContentStream;
import org.apache.pdfbox.pdmodel.graphics.xobject.PDCcitt;
import org.apache.pdfbox.pdmodel.graphics.xobject.PDJpeg;
import org.apache.pdfbox.pdmodel.graphics.xobject.PDPixelMap;
import org.apache.pdfbox.pdmodel.graphics.xobject.PDXObjectImage;
public class ImageToPDF
{
public void createPDFFromImage( String file, String image) throws IOException, COSVisitorException
{
PDDocument doc = null;
try
{
doc = new PDDocument();
PDPage page = new PDPage();
doc.addPage( page );
PDXObjectImage ximage = null;
if( image.toLowerCase().endsWith( ".jpg" ) || image.toLowerCase().endsWith( ".jpeg" ))
{
BufferedImage awtImage = ImageIO.read( new File( image ) );
ximage = new PDJpeg(doc, awtImage, 0 );
}
else if (image.toLowerCase().endsWith(".tif") || image.toLowerCase().endsWith(".tiff"))
{
ximage = new PDCcitt(doc, new RandomAccessFile(new File(image),"r"));
}
else
{
BufferedImage awtImage = new BufferedImage(1000, 800, BufferedImage.TYPE_INT_RGB);
awtImage = ImageIO.read(new FileImageInputStream(new File( image )));
ximage = new PDPixelMap(doc, awtImage);
}
System.out.println(" Width of the image.... "+ximage.getWidth());
PDPageContentStream contentStream = new PDPageContentStream(doc, page);
contentStream.drawImage( ximage, 20, 20 );
contentStream.close();
doc.save( file );
}
finally
{
if( doc != null )
{
doc.close();
}
}
}
public static void main(String[] args)
{
ImageToPDF app = new ImageToPDF();
try
{
app.createPDFFromImage( "C:\\test1.pdf", "C:\\Sunset.jpg");
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
请帮我纠正我做错的地方。你考虑过裁剪你的图像以防止它被切断吗
contentStream.drawImage( ximage, 20, 20, croppedWidth, croppedHeight );
请尝试修改drawImage语句,如下所示:
content.drawImage(ximage,0 /*or your preferred indent*/,(700-ximage.getHeight()));
这些代码可能对您有所帮助,它是有效的
public void createPDFFromImage(String pdfFile,
List<String> imgList,int x, int y, float scale) throws IOException, COSVisitorException {
// the document
PDDocument doc = null;
try {
doc = new PDDocument();
Iterator iter = imgList.iterator();
int imgIndex=0;
while(iter.hasNext()) {
PDPage page = new PDPage();
doc.addPage(page);
BufferedImage tmp_image = ImageIO.read(new File(iter.next().toString()));
BufferedImage image = new BufferedImage(tmp_image.getWidth(), tmp_image.getHeight(), BufferedImage.TYPE_4BYTE_ABGR);
image.createGraphics().drawRenderedImage(tmp_image, null);
PDXObjectImage ximage = new PDPixelMap(doc, image);
imgIndex++;
PDPageContentStream contentStream = new PDPageContentStream(
doc, page,true,true);
contentStream.drawXObject(ximage, x, y, ximage.getWidth()*scale, ximage.getHeight()*scale);
contentStream.close();
}
doc.save(pdfFile);
} finally {
if (doc != null) {
doc.close();
}
}
}
public void createPDFFromImage(字符串Pdfile,
列出imgList、int x、int y、float scale)抛出IOException、COSVisitorException{
//文件
PDDocument=null;
试一试{
doc=新的PDDocument();
迭代器iter=imgList.Iterator();
int imgIndex=0;
while(iter.hasNext()){
PDPage page=新PDPage();
文件添加页(第页);
buffereImage tmp_image=ImageIO.read(新文件(iter.next().toString());
BuffereImage=新的BuffereImage(tmp_image.getWidth()、tmp_image.getHeight()、BuffereImage.TYPE_4BYTE_ABGR);
image.createGraphics().DrawRenderImage(tmp_图像,null);
PDXObjectImage ximage=新的PDPixelMap(文档、图像);
imgIndex++;
PDPageContentStream contentStream=新的PDPageContentStream(
doc,page,true,true);
contentStream.drawXObject(ximage,x,y,ximage.getWidth()*比例,ximage.getHeight()*比例);
contentStream.close();
}
文件保存(pdfFile);
}最后{
如果(doc!=null){
doc.close();
}
}
}
请添加以下代码片段并重试:
需要导入:
import org.apache.pdfbox.pdmodel.common.PDRectangle;
PDXObjectImage image = new PDJpeg(pdfDoc, filePath));
float w = image.getWidth();
float h = image.getHeight();
PDPage page = new PDPage(new PDRectangle (w,h));
代码添加:
import org.apache.pdfbox.pdmodel.common.PDRectangle;
PDXObjectImage image = new PDJpeg(pdfDoc, filePath));
float w = image.getWidth();
float h = image.getHeight();
PDPage page = new PDPage(new PDRectangle (w,h));
下面是一个工作例程(PDFBox版本为2.0.x),它将BuffereImage(例如签名)添加到以字节数组形式给出的PDF文档中。结果又是一个字节数组
public static byte[] addBufferedImageIntoPdfPage(byte[] pdfDocumentData, BufferedImage imageToAdd, int pageNumber, int posX, int posY, float scaleImage) throws IOException
{
PDDocument originalDocument = PDDocument.load(new ByteArrayInputStream(pdfDocumentData));
PDImageXObject pdImage = LosslessFactory.createFromImage(originalDocument, imageToAdd);
PDPage page = originalDocument.getPage(pageNumber);
PDPageContentStream contentStream = new PDPageContentStream(originalDocument, page, PDPageContentStream.AppendMode.APPEND, true, true);
// better method inspired by http://stackoverflow.com/a/22318681/535646
contentStream.drawImage(pdImage, posX, posY, pdImage.getWidth() * scaleImage, pdImage.getHeight() * scaleImage);
contentStream.close();
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
originalDocument.save(outputStream);
return outputStream.toByteArray();
}
希望这有帮助。干杯 你曾经在这里找到你问题的答案吗?如果是,请分享,因为我面临着同样的问题。你试过最新的吗?您是否已将所有库usch作为jemp和tempbox包含在代码中???+10对于此代码,我在PDFBox.v2.0.0:drawXObject-“@不推荐使用drawImage或drawForm”的代码示例中包含了“contentStream.drawXObject”行