Convert Visio to PDF format
Exporting to PDF
Aspose.Diagram for Java directly writes the information about the API and Version Number in output documents. For example, upon rendering a Drawing to PDF, Aspose.Diagram for Java populates Applicazionecampo con valore ‘Aspose.Diagram’ ePDF Producercampo con un valore, ad esempio ‘Aspose.Diagram 17.9’.
Si noti che non è possibile incaricare Aspose.Diagram for Java API di modificare o rimuovere queste informazioni dai documenti di output.
This article explains how to export a Microsoft Visio diagram to PDF using Aspose.Diagram for Java API.
Utilizzare ilDiagram class' per leggere i file diagram e il metodo Save per esportare diagram in qualsiasi formato di immagine supportato.
The image below shows the VSD diagram that the code snippets below export PDF. You can use other diagram formats (VSS, VSSX, VSSM, VDX, VST, VSTX, VSTM, VDX, VTX or VSX) as well.
Il file sorgente.
To export VSD diagram to PDF:
- Creare un’istanza della classe Diagram.
- Call the Diagram classs Save method and set the output format to PDF.
Below is an image of the output PDF file.
Il file di output PDF.
Exporting to PDF Programming Sample
// For complete examples and data files, please go to https://github.com/aspose-diagram/Aspose.Diagram-for-Java | |
// The path to the documents directory. | |
String dataDir = Utils.getDataDir(ExportToPDF.class); | |
// Call the diagram constructor to load diagram from a VSD file | |
Diagram diagram = new Diagram(dataDir + "ExportToPDF.vsd"); | |
// Save as PDF file format | |
diagram.save(dataDir + "ExportToPDF_Out.pdf", SaveFileFormat.PDF); |
Dividi più pagine
Aspose.Diagram for Java allows splitting multiple pages while converting the Microsoft Visio Diagram to PDF. The following code snippet shows the functionality.
// For complete examples and data files, please go to https://github.com/aspose-diagram/Aspose.Diagram-for-Java | |
// The path to the documents directory. | |
String dataDir = Utils.getDataDir(UsePDFSaveOptions.class); | |
// Call the diagram constructor to load diagram from a VSDX file | |
Diagram diagram = new Diagram(dataDir + "Network Diagram_start.vsdx"); | |
// Options when saving a diagram into the PDF format | |
PdfSaveOptions options = new PdfSaveOptions(); | |
// set SplitMultiPages option | |
options.setSplitMultiPages(true); | |
// save in PDF format | |
diagram.save(dataDir + "SplitMultiPages.pdf", options); |
Usa pagina salva richiamata
In case you have multiple pages, Aspose.Diagram for Java allows using page saving callback while converting the Microsoft Visio Diagram to PDF. The following code snippet shows the functionality.
// For complete examples and data files, please go to https://github.com/aspose-diagram/Aspose.Diagram-for-Java | |
// The path to the documents directory. | |
String dataDir = Utils.getDataDir(DocumentConversionProgress.class); | |
// load a Visio diagram | |
Diagram diagram = new Diagram(dataDir + "Drawing1.vsdx"); | |
// create an instance PDF save options class | |
PdfSaveOptions options = new PdfSaveOptions(); | |
//set page saving call back | |
options.setPageSavingCallback( new TestDiagramPageSavingCallback()); | |
// save Visio drawing | |
diagram.save(dataDir + "Callback_out.pdf", options); |
Classe TestDiagramPageSavingCallback
// For complete examples and data files, please go to https://github.com/aspose-diagram/Aspose.Diagram-for-Java | |
import com.aspose.diagram.IPageSavingCallback; | |
import com.aspose.diagram.PageEndSavingArgs; | |
import com.aspose.diagram.PageStartSavingArgs; | |
public class TestDiagramPageSavingCallback implements IPageSavingCallback | |
{ | |
public void pageStartSaving(PageStartSavingArgs args) | |
{ | |
System.out.println("Start saving page index " + args.getPageIndex() + " of pages " + args.getPageCount()); | |
} | |
public void pageEndSaving(PageEndSavingArgs args) | |
{ | |
System.out.println("End saving page index " + args.getPageIndex() + " of pages " + args.getPageCount()); | |
//don't output pages after page index 8. | |
if (args.getPageIndex() >= 8) | |
{ | |
args.setHasMorePages(false); | |
} | |
} | |
} | |