liu created PDFBOX-5754:
---------------------------
Summary: PDF conversion in this format is very slow. Is there any
room for optimization?
Key: PDFBOX-5754
URL: https://issues.apache.org/jira/browse/PDFBOX-5754
Project: PDFBox
Issue Type: Bug
Reporter: liu
Attachments: image2.pdf
pdf： [^image2.pdf]
demo：
{code:java}
public static void main(String[] args) throws IOException, InterruptedException
{
File file = new File("D:\\fcs\\test\\test6\\image2.pdf");
final PDDocument load = PDDocument.load(file,
MemoryUsageSetting.setupTempFileOnly()
.setTempDir(new File("D:\\fcs\\test")));
try {
PDFRenderer renderer = new PDFRenderer(load);
// renderer.setSubsamplingAllowed(true);
int pageIndex = 0;
float scale = 2f;
BufferedImage bufferedImage =
renderer.renderImage(pageIndex, scale, ImageType.RGB);
FileOutputStream fos = null;
try {
fos = new FileOutputStream(new
File("D:\\fcs\\test/test6/image" + pageIndex + ".jpg"));
ImageIO.write(bufferedImage, "jpg", fos);
} finally {
if (fos != null) {
fos.close();
}
}
} catch (Throwable e){
e.printStackTrace();
}
Thread.sleep(6000000);
}
{code}
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