Spire.PDF for Java 3.4.2 现已正式发布。该版本支持 嵌入3D文件 和声音文件，也支持设置画笔的虚实线格式。除此之外，该版本还成功修复了一些在删除图片和获取PDF文档缩放比例时出现的问题。新功能及问题修复详情，请查阅以下内容。

新功能:

• 支持设置画笔的虚实线格式。

//Create a pen
PdfPen pen = new PdfPen(new PdfRGBColor(Color.red), 3f);
//Set dash style
pen.setDashStyle(PdfDashStyle.Dash);

• 支持嵌入3D文件。

String inputFile = "data/CreatePdf3DAnnotation.u3d";
String outputFile = "output/CreatePdf3DAnnotation.pdf";

//Create a Pdf document.        
PdfDocument pdf = new PdfDocument();

//Add a new page.        
PdfPageBase page = pdf.getPages().add();

//Draw a rectangle on the page to define the canvas area for the 3D file.        
Rectangle rt = new Rectangle(0, 80, 200, 200);

//Initialize a new object of Pdf3DAnnotation, load the .u3d file as 3D annotation.        
Pdf3DAnnotation annotation = new Pdf3DAnnotation(rt, inputFile);
annotation.setActivation(new Pdf3DActivation());
annotation.getActivation().setActivationMode(Pdf3DActivationMode.Page_Open);

Pdf3DView View = new Pdf3DView();
View.setBackground(new Pdf3DBackground(new PdfRGBColor(128,0,128)));
View.setViewNodeName("3DAnnotation");
View.setRenderMode(new Pdf3DRendermode(Pdf3DRenderStyle.Solid));
View.setInternalName("3DAnnotation");
View.setLightingScheme(new Pdf3DLighting());
View.getLightingScheme().setStyle(Pdf3DLightingStyle.Day);

//Set the 3D view mode for the annotation.
annotation.getViews().add(View);

//Add the annotation to Pdf.
page.getAnnotationsWidget().add(annotation);

//Save the document        
pdf.saveToFile(outputFile);

• 支持嵌入声音文件。

String inputFile = "data/EmbedSoundFile.pdf";
String inputFile_1 = "data/Music.wav";
String outputFile = "output/EmbedSoundFile.pdf";

//create a pdf document        
PdfDocument doc = new PdfDocument();

//load file from disk        
doc.loadFromFile(inputFile);

//get the first page        
PdfPageBase page = doc.getPages().get(0);

//create a sound action        
PdfSoundAction soundAction = new PdfSoundAction(inputFile_1);
soundAction.getSound().setBits(16);      soundAction.getSound().setChannels(PdfSoundChannels.Stereo);
soundAction.getSound().setEncoding(PdfSoundEncoding.Signed);
soundAction.setVolume(0.8f);
soundAction.setRepeat(true);

// set the sound action to be executed when the PDF document is opened        
doc.setAfterOpenAction(soundAction);

//save the document        
doc.saveToFile(outputFile);

• 支持设置页面标签的顺序。

PdfPageBase page = pdf.getPages().get(0);
page.SetTabOrder(TabOrder.Structure);

问题修复:

• 修复了删除图片失败的问题。
• 修复了获取PDF文档缩放比例失败的问题。

https://www.e-iceblue.cn/Downloads/Spire-PDF-JAVA.html