Reduce image quality Leave feedback

If the output PDF file contains images, you can reduce its size using image compression.

To enable image compression, set the setCompressImages() method to true. The GroupDocs.Viewer compresses all images in the file.

The setImageQuality() method determines the compression ratio. It is a quality value in percent. 100% means original quality.

The following code snippet shows how to compress images in the file:

try (Viewer viewer = new Viewer("sample.docx")) {
    PdfViewOptions viewOptions = new PdfViewOptions();
    viewOptions.setPdfOptimizationOptions(new PdfOptimizationOptions());
    viewOptions.getPdfOptimizationOptions().setCompressImages(true);
    viewOptions.getPdfOptimizationOptions().setImageQuality(50);
     
    viewer.view(viewOptions);
}

The following image demonstrates the result: