Examples with PdfArray com.itextpdf.kernel.pdf.PdfArray used on opensource projects

Example 16 with PdfArray

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

the class PdfCleanUpProcessorUnitTest method areColorSpacesDifferentForEqualPdfArraysValuesTest.

@Test
public void areColorSpacesDifferentForEqualPdfArraysValuesTest() {
    PdfArray pdfFirstArray = createPdfArray(PdfName.Separation, new PdfNumber(1), new PdfBoolean(true));
    PdfArray pdfSecondArray = createPdfArray(PdfName.Separation, new PdfNumber(1), new PdfBoolean(true));
    Assert.assertFalse(createAndCompareImages(pdfFirstArray, pdfSecondArray));
}

Example 17 with PdfArray

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

the class PdfCleanUpProcessorUnitTest method areColorSpacesDifferentForEqualPdfArraysWithNullsValuesTest.

@Test
public void areColorSpacesDifferentForEqualPdfArraysWithNullsValuesTest() {
    PdfArray pdfFirstArray = createPdfArray(PdfName.Separation, new PdfNull());
    PdfArray pdfSecondArray = createPdfArray(PdfName.Separation, new PdfNull());
    Assert.assertFalse(createAndCompareImages(pdfFirstArray, pdfSecondArray));
}

Example 18 with PdfArray

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

the class PdfCleanUpProcessor method getFilteredImage.

private PdfImageXObject getFilteredImage(FilteredImagesCache.FilteredImageKey filteredImageKey, Matrix ctmForMasksFiltering) {
    PdfImageXObject originalImage = filteredImageKey.getImageXObject();
    PdfImageXObject imageToWrite = getFilteredImagesCache().get(filteredImageKey);
    if (imageToWrite == null) {
        PdfCleanUpFilter.FilterResult<ImageData> imageFilterResult = filter.filterImage(filteredImageKey);
        if (imageFilterResult.isModified()) {
            ImageData filteredImageData = imageFilterResult.getFilterResult();
            if (Boolean.TRUE.equals(originalImage.getPdfObject().getAsBool(PdfName.ImageMask))) {
                if (!PdfCleanUpFilter.imageSupportsDirectCleanup(originalImage)) {
                    Logger logger = LoggerFactory.getLogger(PdfCleanUpProcessor.class);
                    logger.error(CleanUpLogMessageConstant.IMAGE_MASK_CLEAN_UP_NOT_SUPPORTED);
                } else {
                    filteredImageData.makeMask();
                }
            }
            if (filteredImageData != null) {
                imageToWrite = new PdfImageXObject(filteredImageData);
                getFilteredImagesCache().put(filteredImageKey, imageToWrite);
                // then the old colorspace may produce an error with the new image data.
                if (areColorSpacesDifferent(originalImage, imageToWrite) && CleanUpCsCompareUtil.isOriginalCsCompatible(originalImage, imageToWrite)) {
                    PdfObject originalCS = originalImage.getPdfObject().get(PdfName.ColorSpace);
                    if (originalCS != null) {
                        imageToWrite.put(PdfName.ColorSpace, originalCS);
                    }
                }
                if (ctmForMasksFiltering != null && !filteredImageData.isMask()) {
                    filterImageMask(originalImage, PdfName.SMask, ctmForMasksFiltering, imageToWrite);
                    filterImageMask(originalImage, PdfName.Mask, ctmForMasksFiltering, imageToWrite);
                    PdfArray colourKeyMaskingArr = originalImage.getPdfObject().getAsArray(PdfName.Mask);
                    if (colourKeyMaskingArr != null) {
                        // In general we should be careful about images that might have changed their color space
                        // or have been converted to lossy format during filtering.
                        // However we have been copying Mask entry non-conditionally before and also I'm not sure
                        // that cases described above indeed take place.
                        imageToWrite.put(PdfName.Mask, colourKeyMaskingArr);
                    }
                    if (originalImage.getPdfObject().containsKey(PdfName.SMaskInData)) {
                        // This entry will likely lose meaning after image conversion to bitmap and back again, but let's leave as is for now.
                        imageToWrite.put(PdfName.SMaskInData, originalImage.getPdfObject().get(PdfName.SMaskInData));
                    }
                }
            }
        } else {
            imageToWrite = originalImage;
        }
    }
    return imageToWrite;
}

Example 19 with PdfArray

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

the class PdfCleanUpProcessor method cleanText.

private void cleanText(String operator, List<PdfObject> operands) {
    List<TextRenderInfo> textChunks = null;
    PdfArray cleanedText = null;
    if ("TJ".equals(operator)) {
        PdfArray originalTJ = (PdfArray) operands.get(0);
        if (originalTJ.isEmpty()) {
            // we can safely ignore it
            return;
        }
        // text chunk index in original TJ
        int i = 0;
        PdfTextArray newTJ = new PdfTextArray();
        for (PdfObject e : originalTJ) {
            if (e.isString()) {
                if (null == textChunks) {
                    textChunks = ((PdfCleanUpEventListener) getEventListener()).getEncounteredText();
                }
                PdfArray filteredText = filter.filterText(textChunks.get(i++)).getFilterResult();
                newTJ.addAll(filteredText);
            } else {
                newTJ.add(e);
            }
        }
        cleanedText = newTJ;
    } else {
        // if operator is Tj or ' or "
        textChunks = ((PdfCleanUpEventListener) getEventListener()).getEncounteredText();
        PdfCleanUpFilter.FilterResult<PdfArray> filterResult = filter.filterText(textChunks.get(0));
        if (filterResult.isModified()) {
            cleanedText = filterResult.getFilterResult();
        }
    }
    // if text wasn't modified cleanedText is null
    if (cleanedText == null || cleanedText.size() != 1 || !cleanedText.get(0).isNumber()) {
        if (null == textChunks) {
            textChunks = ((PdfCleanUpEventListener) getEventListener()).getEncounteredText();
        }
        // all text chunks even in case of TJ have the same graphics state
        TextRenderInfo text = textChunks.get(0);
        writeNotAppliedGsParamsForText(text);
        beginTextObjectAndOpenNotWrittenTags();
        writeNotAppliedTextStateParams(text);
        textPositioning.writePositionedText(operator, operands, cleanedText, getCanvas());
    } else {
        // cleaned text is tj array with single number - it means that the whole text chunk was removed
        CanvasGraphicsState gs = getCanvas().getGraphicsState();
        // process new lines if necessary
        if ("'".equals(operator) || "\"".equals(operator)) {
            List<PdfObject> newLineList = new ArrayList<>();
            newLineList.add(new PdfLiteral("T*"));
            textPositioning.appendPositioningOperator("T*", newLineList);
        }
        textPositioning.appendTjArrayWithSingleNumber(cleanedText, gs.getFontSize(), gs.getHorizontalScaling());
    }
}