com.aspose.words
Class PdfImageCompression

java.lang.Object
    extended by com.aspose.words.PdfImageCompression

public class PdfImageCompression 
extends java.lang.Object

Utility class containing constants. Specifies the type of compression applied to images in the PDF file.

Example:

Shows how to save images to PDF using JPEG encoding to decrease file size.
Document doc = new Document(getMyDir() + "Images.docx");

PdfSaveOptions pdfSaveOptions = new PdfSaveOptions();
pdfSaveOptions.setImageCompression(PdfImageCompression.JPEG);
pdfSaveOptions.getDownsampleOptions().setDownsampleImages(false);

doc.save(getArtifactsDir() + "PdfSaveOptions.ImageCompression.pdf", pdfSaveOptions);

PdfSaveOptions pdfSaveOptionsA1B = new PdfSaveOptions();
pdfSaveOptionsA1B.setCompliance(PdfCompliance.PDF_A_1_B);
pdfSaveOptionsA1B.setImageCompression(PdfImageCompression.JPEG);
pdfSaveOptionsA1B.getDownsampleOptions().setDownsampleImages(false);
// Use JPEG compression at 50% quality to reduce file size
pdfSaveOptionsA1B.setJpegQuality(100);
pdfSaveOptionsA1B.setImageColorSpaceExportMode(PdfImageColorSpaceExportMode.SIMPLE_CMYK);

doc.save(getArtifactsDir() + "PdfSaveOptions.ImageCompression.PDF_A_1_B.pdf", pdfSaveOptionsA1B);

PdfSaveOptions pdfSaveOptionsA1A = new PdfSaveOptions();
pdfSaveOptionsA1A.setCompliance(PdfCompliance.PDF_A_1_A);
pdfSaveOptionsA1A.setExportDocumentStructure(true);
pdfSaveOptionsA1A.setImageCompression(PdfImageCompression.JPEG);
pdfSaveOptionsA1A.getDownsampleOptions().setDownsampleImages(false);

doc.save(getArtifactsDir() + "PdfSaveOptions.ImageCompression.PDF_A_1_A.pdf", pdfSaveOptionsA1A);

Field Summary
static final intAUTO = 0
           Automatically selects the most appropriate compression for each image.
static final intJPEG = 1
           Jpeg compression. Does not support transparency.
 

Field Detail

AUTO = 0

public static final int AUTO
Automatically selects the most appropriate compression for each image.

JPEG = 1

public static final int JPEG
Jpeg compression. Does not support transparency.

See Also:
          Aspose.Words Documentation - the home page for the Aspose.Words Product Documentation.
          Aspose.Words Support Forum - our preferred method of support.