java.lang.OutOfMemoryError: Java heap space

Hello,

I have a problem with text extraction.
The problem is not enough memory in VM during the text extraction!

My Code:
String pdfFile = "D:\testfolder\test1fd9a_test.pdf"; //size of file 168 KB
PDDocument document = PDDocument.load(pdfFile, true);

PDFTextStripper stripper = null;
try {
stripper = new PDFTextStripper();
stripper.setSortByPosition(true);
stripper.writeText(document, outputWriter);
} catch () {
}

You get an error:
java.lang.OutOfMemoryError: Java heap space