Examples with PdfProcessingException org.jaffa.modules.printing.services.exceptions.PdfProcessingException used on opensource projects

Example 1 with PdfProcessingException

use of org.jaffa.modules.printing.services.exceptions.PdfProcessingException in project jaffa-framework by jaffa-projects.

the class PdfHelper method removeRotation.

/**
 * Remove the rotation from the pdfOutput document pages.
 */
private static byte[] removeRotation(byte[] pdfOutput) throws FormPrintException {
    PdfReader currentReader = null;
    try {
        currentReader = new PdfReader(pdfOutput);
    } catch (IOException ex) {
        FormPrintException e = new PdfProcessingException("Remove PDF Page Rotation  - Failed to create a PDF Reader");
        log.error(" Remove PDF Page Rotation  - Failed to create a PDF Reader ");
        throw e;
    }
    boolean needed = false;
    for (int i = 1; i <= currentReader.getNumberOfPages(); i++) {
        if (currentReader.getPageRotation(i) != 0) {
            needed = true;
        }
    }
    if (!needed) {
        return pdfOutput;
    }
    OutputStream baos = new ByteArrayOutputStream();
    Document document = new Document();
    PdfWriter writer = null;
    try {
        writer = PdfWriter.getInstance(document, baos);
    } catch (DocumentException ex) {
        FormPrintException e = new PdfProcessingException("Remove PDF Page Rotation  - Failed to create a PDF Writer");
        log.error(" Remove PDF Page Rotation  - Failed to create a PDF Writer ");
        throw e;
    }
    PdfContentByte cb = null;
    PdfImportedPage page;
    for (int i = 1; i <= currentReader.getNumberOfPages(); i++) {
        Rectangle currentSize = currentReader.getPageSizeWithRotation(i);
        // strip rotation
        currentSize = new Rectangle(currentSize.getWidth(), currentSize.getHeight());
        document.setPageSize(currentSize);
        if (cb == null) {
            document.open();
            cb = writer.getDirectContent();
        } else {
            document.newPage();
        }
        int rotation = currentReader.getPageRotation(i);
        page = writer.getImportedPage(currentReader, i);
        float a, b, c, d, e, f;
        if (rotation == 0) {
            a = 1;
            b = 0;
            c = 0;
            d = 1;
            e = 0;
            f = 0;
        } else if (rotation == 90) {
            a = 0;
            b = -1;
            c = 1;
            d = 0;
            e = 0;
            f = currentSize.getHeight();
        } else if (rotation == 180) {
            a = -1;
            b = 0;
            c = 0;
            d = -1;
            e = currentSize.getWidth();
            f = currentSize.getHeight();
        } else if (rotation == 270) {
            a = 0;
            b = 1;
            c = -1;
            d = 0;
            e = currentSize.getWidth();
            f = 0;
        } else {
            FormPrintException ex = new PdfProcessingException("Remove PDF Page Rotation - Unparsable rotation value: " + rotation);
            log.error(" Remove PDF Page Rotation - Unparsable form rotation value: " + rotation);
            throw ex;
        }
        cb.addTemplate(page, a, b, c, d, e, f);
    }
    document.close();
    return ((ByteArrayOutputStream) baos).toByteArray();
}

Example 2 with PdfProcessingException

use of org.jaffa.modules.printing.services.exceptions.PdfProcessingException in project jaffa-framework by jaffa-projects.

the class PdfHelper method scalePdfPages.

/**
 * Scale the pages of the input pdfOutput document to the given pageSize.
 * @param pdfOutput The PDF document to rescale, in the form of a ByteArrayOutputStream.
 * @param pageSize The new page size to which to scale to PDF document, e.g. "A4".
 * @param noEnlarge If true, center pages instead of enlarging them.
 *        Use noEnlarge if the new page size is larger than the old one
 *        and the pages should be centered instead of enlarged.
 * @param preserveAspectRatio If true, the aspect ratio will be preserved.
 * @return The PDF document with its pages scaled to the input pageSize.
 */
public static byte[] scalePdfPages(byte[] pdfOutput, String pageSize, boolean noEnlarge, boolean preserveAspectRatio) throws FormPrintException {
    if (pageSize == null || pdfOutput == null) {
        return pdfOutput;
    }
    // Get the dimensions of the given pageSize in PostScript points.
    // A PostScript point is a 72th of an inch.
    float dimX;
    float dimY;
    Rectangle rectangle;
    try {
        rectangle = PageSize.getRectangle(pageSize);
    } catch (Exception ex) {
        FormPrintException e = new PdfProcessingException("scalePdfPages  - Invalid page size = " + pageSize + "  ");
        log.error(" scalePdfPages  - Invalid page size: " + pageSize + ".  " + ex.getMessage() + ". ");
        throw e;
    }
    if (rectangle != null) {
        dimX = rectangle.getWidth();
        dimY = rectangle.getHeight();
    } else {
        FormPrintException e = new PdfProcessingException("scalePdfPages  - Invalid page size: " + pageSize);
        log.error(" scalePdfPages  - Invalid page size: " + pageSize);
        throw e;
    }
    // Create portrait and landscape rectangles for the given page size.
    Rectangle portraitPageSize;
    Rectangle landscapePageSize;
    if (dimY > dimX) {
        portraitPageSize = new Rectangle(dimX, dimY);
        landscapePageSize = new Rectangle(dimY, dimX);
    } else {
        portraitPageSize = new Rectangle(dimY, dimX);
        landscapePageSize = new Rectangle(dimX, dimY);
    }
    // Remove the document rotation before resizing the document.
    byte[] output = removeRotation(pdfOutput);
    PdfReader currentReader = null;
    try {
        currentReader = new PdfReader(output);
    } catch (IOException ex) {
        FormPrintException e = new PdfProcessingException("scalePdfPages  - Failed to create a PDF Reader");
        log.error(" scalePdfPages  - Failed to create a PDF Reader ");
        throw e;
    }
    OutputStream baos = new ByteArrayOutputStream();
    Rectangle newSize = new Rectangle(dimX, dimY);
    Document document = new Document(newSize, 0, 0, 0, 0);
    PdfWriter writer = null;
    try {
        writer = PdfWriter.getInstance(document, baos);
    } catch (DocumentException ex) {
        FormPrintException e = new PdfProcessingException("scalePdfPages  - Failed to create a PDF Writer");
        log.error(" scalePdfPages  - Failed to create a PDF Writer ");
        throw e;
    }
    document.open();
    PdfContentByte cb = writer.getDirectContent();
    PdfImportedPage page;
    float offsetX, offsetY;
    for (int i = 1; i <= currentReader.getNumberOfPages(); i++) {
        Rectangle currentSize = currentReader.getPageSizeWithRotation(i);
        if (currentReader.getPageRotation(i) != 0) {
            FormPrintException e = new PdfProcessingException("Page Rotation, " + currentReader.getPageRotation(i) + ", must be removed to re-scale the form.");
            log.error(" Page Rotation, " + currentReader.getPageRotation(i) + ", must be removed to re-scale the form. ");
            throw e;
        }
        // Reset the page size for each page because there may be a mix of sizes in the document.
        float currentWidth = currentSize.getWidth();
        float currentHeight = currentSize.getHeight();
        if (currentWidth > currentHeight) {
            newSize = landscapePageSize;
        } else {
            newSize = portraitPageSize;
        }
        document.setPageSize(newSize);
        document.newPage();
        float factorX = newSize.getWidth() / currentSize.getWidth();
        float factorY = newSize.getHeight() / currentSize.getHeight();
        // and the pages should be centered instead of enlarged.
        if (noEnlarge) {
            if (factorX > 1) {
                factorX = 1;
            }
            if (factorY > 1) {
                factorY = 1;
            }
        }
        if (preserveAspectRatio) {
            factorX = Math.min(factorX, factorY);
            factorY = factorX;
        }
        offsetX = (newSize.getWidth() - (currentSize.getWidth() * factorX)) / 2f;
        offsetY = (newSize.getHeight() - (currentSize.getHeight() * factorY)) / 2f;
        page = writer.getImportedPage(currentReader, i);
        cb.addTemplate(page, factorX, 0, 0, factorY, offsetX, offsetY);
    }
    document.close();
    return ((ByteArrayOutputStream) baos).toByteArray();
}