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https://issues.apache.org/jira/browse/PDFBOX-3453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15406387#comment-15406387
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John Hewson commented on PDFBOX-3453:
-------------------------------------
To explain this one a little further: Pageable and Printable have no knowledge
of the the PrinterJob which will eventually print them. It's not possible for
PrintRequestAttribute to affect their behaviour - hence this not being a PDFBox
issue.
Java's printing APIs are something of a dark art and I've personally
encountered many, many bugs. PrintRequestAttributes are essentially the
settings you'd find in the system "print" dialog and are passed along to the
print driver - Java does not implement them.
One complicating factor is that Java printing exposes pieces native
functionality from the underlying systems, for example you might have a CUPS
driver which can take PostScript input, or PNG input, or even PDF input - and
the print driver will handle these formats natively. Java calls these
{{DocFlavor}}. Printing to a Graphics2D via a Pageable results in a DocFlavor
of {{DocFlavor.SERVICE_FORMATTED.PAGEABLE}}. So you might see different results
with various PrintRequestAttributes depending on what exactly you're printing.
You can switch out PDFPrintable for this TestPrintable which prints to a
Graphics2D in the same manner as PDFBox. I'd expect you to have the same
printing problems:
{code}
public static class TestPrintable implements Printable
{
@Override
public int print(Graphics g, PageFormat pageFormat, int pageIndex) {
g.setColor(Color.RED);
g.drawRect((int)pageFormat.getImageableX(),
(int)pageFormat.getImageableY(),
(int)pageFormat.getImageableWidth() -1,
(int)pageFormat.getImageableHeight() -1);
return PAGE_EXISTS;
}
}
{code}
> PDFPrintable plus PrintRequestAttributeSet breaks page size
> -----------------------------------------------------------
>
> Key: PDFBOX-3453
> URL: https://issues.apache.org/jira/browse/PDFBOX-3453
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 2.0.0
> Environment: Java 8 u77, MacOS 10.11
> Reporter: Tres Finocchiaro
> Priority: Critical
>
> On MacOS, when supplying custom attributes to the print interface, it has the
> reverse effect and ignores the attributes specified, including the page size.
> In the below example, the page size will default to US Letter (8.5 x 11)
> despite being specified as 4 x 6.
> A temporary workaround is to not specify any PrintRequestAttributes, downside
> being you lose the option for collation, copies, chromacity, print tray, etc.
> * This bug is NOT reproducible on Windows.
> * This bug is NOT reproducible on Mac when using a non-PDFBOX library to
> print.
> * This bug only occurs when using PDFBOX and MacOS and custom print
> attributes are supplied to the print job.
> {code}
> public static void main(String[] args) throws Exception {
> //test data
> Paper paper = new Paper();
> paper.setSize(4 * 72, 6 * 72); //4x6in
> paper.setImageableArea(0, 0, 4 * 72, 6 * 72);
> PageFormat pf = new PageFormat();
> pf.setPaper(paper);
> PDDocument doc = PDDocument.load(new File(args[0]));
> Book book = new Book();
> book.append(new PDFPrintable(doc, Scaling.SCALE_TO_FIT, false, 0,
> false), pf);
> //No print attributes - Works
> PrinterJob jobPlain = PrinterJob.getPrinterJob();
> jobPlain.setPageable(book);
> jobPlain.print();
> //With print attributes - Fails, resets paper size to system default
> & attributes are ignored
> PrintRequestAttributeSet attributes = new
> HashPrintRequestAttributeSet();
> attributes.add(Chromaticity.MONOCHROME);
> PrinterJob jobAttr = PrinterJob.getPrinterJob();
> jobAttr.setPageable(book);
> jobAttr.print(attributes);
> }
> {code}
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