Java Code Examples for org.apache.pdfbox.pdmodel.PDResources#isImageXObject()

The following examples show how to use org.apache.pdfbox.pdmodel.PDResources#isImageXObject() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: PdfExtractImagesBatchController.java    From MyBox with Apache License 2.0 5 votes vote down vote up 
@Override
public int handleCurrentPage() {
    int index = 0;
    try {
        PDPage page = doc.getPage(currentParameters.currentPage - 1);  // 0-based
        PDResources pdResources = page.getResources();
        Iterable<COSName> iterable = pdResources.getXObjectNames();
        if (iterable != null) {
            Iterator<COSName> pageIterator = iterable.iterator();
            while (pageIterator.hasNext()) {
                if (task.isCancelled()) {
                    break;
                }
                COSName cosName = pageIterator.next();
                if (!pdResources.isImageXObject(cosName)) {
                    continue;
                }
                PDImageXObject pdxObject = (PDImageXObject) pdResources.getXObject(cosName);
                String namePrefix = FileTools.getFilePrefix(currentParameters.currentSourceFile.getName())
                        + "_page" + currentParameters.currentPage + "_index" + index;
                String suffix = pdxObject.getSuffix();
                File tFile = makeTargetFile(namePrefix, "." + suffix, currentParameters.currentTargetPath);
                ImageFileWriters.writeImageFile(pdxObject.getImage(), suffix, tFile.getAbsolutePath());
                targetFileGenerated(tFile);
                if (isPreview) {
                    break;
                }
                index++;
            }
        }

    } catch (Exception e) {
        logger.error(e.toString());
    }
    return index;
}
Example 2
Source File: PdfOcrBatchController.java    From MyBox with Apache License 2.0 5 votes vote down vote up 
protected int extractPage() {
    int index = 0;
    try {
        PDPage page = doc.getPage(currentParameters.currentPage - 1);  // 0-based
        PDResources pdResources = page.getResources();
        Iterable<COSName> iterable = pdResources.getXObjectNames();
        if (iterable != null) {
            Iterator<COSName> pageIterator = iterable.iterator();
            while (pageIterator.hasNext()) {
                if (task.isCancelled()) {
                    break;
                }
                COSName cosName = pageIterator.next();
                if (!pdResources.isImageXObject(cosName)) {
                    continue;
                }
                PDImageXObject pdxObject = (PDImageXObject) pdResources.getXObject(cosName);
                BufferedImage bufferedImage = pdxObject.getImage();
                if (handleImage(bufferedImage)) {
                    lastImage = bufferedImage;
                    if (isPreview) {
                        break;
                    }
                    index++;
                }
            }
        }

    } catch (Exception e) {
        logger.error(e.toString());
    }
    return index;
}
Example 3
Source File: PdfCompressImagesBatchController.java    From MyBox with Apache License 2.0 4 votes vote down vote up 
@Override
public int handleCurrentPage() {
    int count = 0;
    try {
        PDPage sourcePage = doc.getPage(currentParameters.currentPage - 1);  // 0-based
        PDResources pdResources = sourcePage.getResources();
        pdResources.getXObjectNames();
        Iterable<COSName> iterable = pdResources.getXObjectNames();
        if (iterable == null) {
            return 0;
        }
        Iterator<COSName> pageIterator = iterable.iterator();
        while (pageIterator.hasNext()) {
            if (task.isCancelled()) {
                break;
            }
            COSName cosName = pageIterator.next();
            if (!pdResources.isImageXObject(cosName)) {
                continue;
            }
            PDImageXObject pdxObject = (PDImageXObject) pdResources.getXObject(cosName);
            BufferedImage sourceImage = pdxObject.getImage();
            PDImageXObject newObject = null;
            if (format == PdfImageFormat.Tiff) {
                ImageBinary imageBinary = new ImageBinary(sourceImage, threshold);
                imageBinary.setIsDithering(ditherCheck.isSelected());
                BufferedImage newImage = imageBinary.operate();
                newImage = ImageBinary.byteBinary(newImage);
                newObject = CCITTFactory.createFromImage(doc, newImage);

            } else if (format == PdfImageFormat.Jpeg) {
                newObject = JPEGFactory.createFromImage(doc, sourceImage, jpegQuality / 100f);
            }
            if (newObject != null) {
                pdResources.put(cosName, newObject);
                count++;
            }
            if (isPreview) {
                break;
            }
        }
        if (copyAllCheck.isSelected()) {
            targetDoc.getPage(currentParameters.currentPage - 1).setResources(pdResources);
        } else {
            targetDoc.addPage(sourcePage);
        }
    } catch (Exception e) {
        logger.error(e.toString());
    }
    return count;

}