Examples with PdfImageXObject com.itextpdf.kernel.pdf.xobject.PdfImageXObject used on opensource projects

Example 6 with PdfImageXObject

use of com.itextpdf.kernel.pdf.xobject.PdfImageXObject in project i7j-pdfsweep by itext.

the class CleanUpCsCompareUtilTest method differentImageBitsPerPixelTest.

@Test
public void differentImageBitsPerPixelTest() {
    PdfImageXObject image1 = createMockedPdfImageXObject(PdfName.DeviceRGB, 8);
    PdfImageXObject image2 = createMockedPdfImageXObject(PdfName.DeviceRGB, 16);
    Assert.assertFalse(CleanUpCsCompareUtil.isOriginalCsCompatible(image1, image2));
}

Example 7 with PdfImageXObject

use of com.itextpdf.kernel.pdf.xobject.PdfImageXObject in project i7j-pdfsweep by itext.

the class CleanUpCsCompareUtilTest method imageReadExceptionTest.

@Test
@LogMessages(messages = @LogMessage(messageTemplate = CleanUpLogMessageConstant.CANNOT_OBTAIN_IMAGE_INFO_AFTER_FILTERING))
public void imageReadExceptionTest() {
    PdfStream stream1 = new PdfStream();
    stream1.put(PdfName.BitsPerComponent, new PdfNumber(8));
    stream1.put(PdfName.ColorSpace, PdfName.DeviceCMYK);
    PdfImageXObject image1 = new PdfImageXObject(stream1);
    stream1 = new PdfStream();
    stream1.put(PdfName.BitsPerComponent, new PdfNumber(8));
    stream1.put(PdfName.ColorSpace, PdfName.DeviceCMYK);
    PdfImageXObject image2 = new PdfImageXObject(stream1);
    Assert.assertFalse(CleanUpCsCompareUtil.isOriginalCsCompatible(image1, image2));
}

Example 8 with PdfImageXObject

use of com.itextpdf.kernel.pdf.xobject.PdfImageXObject in project i7j-pdfsweep by itext.

the class PdfCleanUpProcessorUnitTest method createAndCompareImages.

private static boolean createAndCompareImages(PdfObject firstCs, PdfObject secondCs) {
    PdfImageXObject firstImage = createImageWithCs(firstCs);
    PdfImageXObject secondImage = createImageWithCs(secondCs);
    boolean compareFirstToSecondResult = PdfCleanUpProcessor.areColorSpacesDifferent(firstImage, secondImage);
    boolean compareSecondToFirstResult = PdfCleanUpProcessor.areColorSpacesDifferent(secondImage, firstImage);
    if (compareFirstToSecondResult != compareSecondToFirstResult) {
        throw new IllegalStateException("The comparing of CS shall be a commutative operation.");
    }
    return compareFirstToSecondResult;
}

Example 9 with PdfImageXObject

use of com.itextpdf.kernel.pdf.xobject.PdfImageXObject in project i7j-pdfsweep by itext.

the class PdfCleanUpProcessorUnitTest method createImageWithCs.

private static PdfImageXObject createImageWithCs(PdfObject cs) {
    PdfStream stream = new PdfStream();
    stream.put(PdfName.Type, PdfName.XObject);
    stream.put(PdfName.Subtype, PdfName.Image);
    if (cs != null) {
        stream.put(PdfName.ColorSpace, cs);
    }
    return new PdfImageXObject(stream);
}

Example 10 with PdfImageXObject

use of com.itextpdf.kernel.pdf.xobject.PdfImageXObject in project i7j-pdfsweep by itext.

the class CleanUpImagesCompareTool method extractImagesFromPdf.

private Map<Integer, PageImageObjectsPaths> extractImagesFromPdf(String pdf, String outputPath) throws IOException, InterruptedException {
    try (PdfReader readerPdf = new PdfReader(pdf);
        PdfDocument pdfDoc = new PdfDocument(readerPdf)) {
        Map<Integer, PageImageObjectsPaths> imageObjectDatas = new HashMap<>();
        for (int i = 1; i <= pdfDoc.getNumberOfPages(); i++) {
            PdfPage page = pdfDoc.getPage(i);
            PageImageObjectsPaths imageObjectData = new PageImageObjectsPaths(page.getPdfObject().getIndirectReference());
            Stack<LocalPathItem> baseLocalPath = new Stack<LocalPathItem>();
            PdfResources pdfResources = page.getResources();
            if (pdfResources.getPdfObject().isIndirect()) {
                imageObjectData.addIndirectReference(pdfResources.getPdfObject().getIndirectReference());
            } else {
                baseLocalPath.push(new DictPathItem(PdfName.Resources));
            }
            PdfDictionary xObjects = pdfResources.getResource(PdfName.XObject);
            if (xObjects == null) {
                continue;
            }
            if (xObjects.isIndirect()) {
                imageObjectData.addIndirectReference(xObjects.getIndirectReference());
                baseLocalPath.clear();
            } else {
                baseLocalPath.push(new DictPathItem(PdfName.XObject));
            }
            boolean isPageToGsExtract = false;
            for (PdfName objectName : xObjects.keySet()) {
                if (!xObjects.get(objectName).isStream() || !PdfName.Image.equals(xObjects.getAsStream(objectName).getAsName(PdfName.Subtype))) {
                    continue;
                }
                PdfImageXObject pdfObject = new PdfImageXObject(xObjects.getAsStream(objectName));
                baseLocalPath.push(new DictPathItem(objectName));
                if (!useGs) {
                    String extension = pdfObject.identifyImageFileExtension();
                    String fileName = outputPath + objectName + "_" + i + "." + extension;
                    createImageFromPdfXObject(fileName, pdfObject);
                } else {
                    isPageToGsExtract = true;
                }
                Stack<LocalPathItem> reversedStack = new Stack<>();
                reversedStack.addAll(baseLocalPath);
                Stack<LocalPathItem> resultStack = new Stack<>();
                resultStack.addAll(reversedStack);
                imageObjectData.addLocalPath(resultStack);
                baseLocalPath.pop();
            }
            if (useGs && isPageToGsExtract) {
                String fileName = "Page_" + i;
                ghostscriptHelper.runGhostScriptImageGeneration(pdf, outputPath, fileName, String.valueOf(i));
            }
            ImageRenderListener listener = new ImageRenderListener();
            PdfCanvasProcessor parser = new PdfCanvasProcessor(listener);
            parser.processPageContent(page);
            ignoredImagesAreas.put(i, listener.getImageRectangles());
            imageObjectDatas.put(i, imageObjectData);
        }
        return imageObjectDatas;
    }
}