Java Code Examples for org.apache.pdfbox.pdmodel.PDPage#findCropBox()

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Example 1
Source File: PdfBoxPreviewTest.java    From java-image-processing-survival-guide with Apache License 2.0 6 votes vote down vote up 
@SuppressWarnings("unchecked")
public List<BufferedImage> toImages(PDDocument pdDocument, int startPage, int endPage, int resolution, int imageType) throws Exception {
    final List<BufferedImage> result = new ArrayList<BufferedImage>();
    final List<PDPage> pages = pdDocument.getDocumentCatalog().getAllPages();
    final int pagesSize = pages.size();

    for (int i = startPage - 1; i < endPage && i < pagesSize; i++) {
        PDPage page = pages.get(i);
        PDRectangle cropBox = page.findCropBox();
        float width = cropBox.getWidth();
        float height = cropBox.getHeight();
        int currResolution = calculateResolution(resolution, width, height);
        BufferedImage image = page.convertToImage(imageType, currResolution);

        if (image != null) {
            result.add(image);
        }
    }

    return result;
}