Extract file from PDF

Hi,

I use Aspose PdfKit 4.2 for java


I do this simple code

InputStream input = new FileInputStream("/home/mburger/tmp/mfm/207_2008_1_T4_2.pdf");
        OutputStream output = new FileOutputStream("/home/mburger/tmp/mfm/xxxx.pdf");
       
        PdfFileEditor editor = new PdfFileEditor();
        editor.extract(input, 1, 1, output);
       
        output.flush();
        output.close();
        input.close();


The Output File has ALWAYS the same size as the input file, if my document has 10 pages and is 5MB big, I extract only the first page from the file, the result file has my desired PAGE but is still 5MB big!!! If I extract 2 pages the file has the same size as the extracted with one page!


can you help me?