pdfbox java.lang.outofmemoryerror_PDFBox添加图像时内存不足

我正在使用PDFBox从我的webapp中提取数据并将其放入PDF中 . 我有一个方法，在每个PDF页面上绘制 Headers . 但是，当我向每个页面添加图像时，文档内存不足 . 我想知道是否有人对解决方案有任何想法？这是我的drawHeader方法：

public static void drawHeader(PDDocument doc，PDPage page，PDPageContentStream contentStream，int [] columnWidths，int pageNumber)throws IOException {

contentStream.beginText();

PDFont font = PDType1Font.HELVETICA_BOLD;

contentStream.setFont(font, 24);

contentStream.moveTextPositionByAmount(50, 750);

contentStream.drawString("Producer License Report");

contentStream.endText();

contentStream.beginText();

contentStream.moveTextPositionByAmount(550, 750);

contentStream.setFont(PDType1Font.HELVETICA_BOLD, 8);

contentStream.drawString("Page " + pageNumber);

contentStream.endText();

contentStream.drawLine(50, 740, 340, 740);

contentStream.drawLine(16, 680, 595, 680);

List headerList = new LinkedList();

headerList.add("NPN");

headerList.add("First Name");

headerList.add("Last Name");

headerList.add("Suffix");

headerList.add("License State");

headerList.add("Resident State");

headerList.add("License Number");

contentStream.setFont(PDType1Font.HELVETICA_BOLD, 9);

float textx = 15;

float texty = 685;

InputStream in = new FileInputStream(new File("logo.jpg"));

PDJpeg img = new PDJpeg(doc, in);

contentStream.drawImage(img, 375, 720);

for (int i = 0; i < headerList.size(); i++) {

String text = headerList.get(i);

contentStream.beginText();

contentStream.moveTextPositionByAmount(textx, texty);

contentStream.drawString(text);

contentStream.endText();

textx += (columnWidths[i] * 6.5);

}

}