[PDFBOX-3306] SCALE_TO_FIT with DPI yields incorrect margins

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0, 2.0.1, 2.0.2, 2.0.3, 3.0.0 PDFBox
• Fix Version/s: 2.0.3, 3.0.0 PDFBox
• Component/s: Rendering
• Labels: print
• External issue URL: https://github.com/qzind/tray/issues/8#issuecomment-202460630
• Assignee: Tilman Hausherr
• Reporter: Tres Finocchiaro
• Created: 04/Apr/16 13:55
• Updated: 25/Mar/17 18:12
• Resolved: 03/Aug/16 19:49

Description

When leveraging print margins using setImageableArea:

• Works fine when SCALE_TO_FIT and DPI 0 are provided (vector-quality printing)
• Works fine when ACTUAL_SIZE and non-zero DPI are provided
• Does NOT work when SCALE_TO_FIT and non-zero DPI are provided.

Code to reproduce

public static void main(String[] args) throws Exception {
    PDDocument pdf = PDDocument.load(new URL(args[0]).openStream());
    PrinterJob job = PrinterJob.getPrinterJob();

    Paper paper = new Paper();
    paper.setSize(612, 792); //8.5 x 11 in
    paper.setImageableArea(72, 72, 468, 648); //1 inch margins

    PageFormat page = job.getPageFormat(null);
    page.setPaper(paper);

    //Vector print - works as expected, margins applied and scaled properly
    job.setPrintable(new PDFPrintable(pdf, Scaling.SCALE_TO_FIT, false, 0, false), page);
    job.print();

    //Unscaled raster print - works as expected, margins applied and document cut off
    job.setPrintable(new PDFPrintable(pdf, Scaling.ACTUAL_SIZE, false, 72, false), page);
    job.print();

    //Scaled raster print - unexpected results, same scale as vector print, but same cut off as unscaled raster print
    job.setPrintable(new PDFPrintable(pdf, Scaling.SCALE_TO_FIT, false, 72, false), page);
    job.print();

    pdf.close();
}