I'm adding an extra answer in answer to the extra question in the comments of the previous answer:
When you have a PdfWriter
instance named writer
, you can set the Viewer preferences like this:
writer.ViewerPreferences = viewerpreference;
In this case, the viewerpreference
is a value that can have one of the following values:
PdfWriter.PageLayoutSinglePage
PdfWriter.PageLayoutOneColumn
PdfWriter.PageLayoutTwoColumnLeft
PdfWriter.PageLayoutTwoColumnRight
PdfWriter.PageLayoutTwoPageLeft
PdfWriter.PageLayoutTwoPageRight
See the PageLayoutExample for more info.
You can also change the page mode as is shown in the ViewerPreferencesExample. In which case the different values are "OR"-ed:
PdfWriter.PageModeFullScreen
PdfWriter.PageModeUseThumbs
PdfWriter.PageLayoutTwoColumnRight | PdfWriter.PageModeUseThumbs
PdfWriter.PageModeFullScreen | PdfWriter.NonFullScreenPageModeUseOutlines
PdfWriter.FitWindow | PdfWriter.HideToolbar
PdfWriter.HideWindowUI
Currently, you've only used the PrintPreferences example from the official documentation:
writer.AddViewerPreference(PdfName.PRINTSCALING, PdfName.NONE);
writer.AddViewerPreference(PdfName.NUMCOPIES, new PdfNumber(3));
writer.AddViewerPreference(PdfName.PICKTRAYBYPDFSIZE, PdfBoolean.PDFTRUE);
But in some cases, it's just easier to use:
writer.ViewerPreferences = viewerpreference;
Note that the official documentation is the book "iText in Action - Second Edition." The examples are written in Java, but you can find the C# version here. There is a new book in the works called "The ABC of PDF", but so far only 4 chapters were written. You'll find more info here: http://itextpdf.com/learn
The part about the different options to create a PdfDestination
is already present in "The ABC of PDF".
As for setting the language, this is done like this:
stamper.Writer.ExtraCatalog.Put(PdfName.LANG, new PdfString("EN"));
The result is shown in the following screen shot:
As you can see, there is now a Lang
entry with value EN
added to the catalog.