Document.add() inside a page event is strictly forbidden or at least not recommended. The risk is endless loops, wrong margins, etc. If using page events watermarks are better replaced by setting the image(s) or text at precise positions.
Best Regards, Paulo Soares > -----Original Message----- > From: [EMAIL PROTECTED] [SMTP:[EMAIL PROTECTED] > Sent: Monday, October 13, 2003 11:40 > To: [EMAIL PROTECTED] > Subject: [iText-questions] StackOverflowError on onEndPage event + > quick'n'dirty workaround > > > I'm writing a simple class who gets an iSeries spool file (text file with > control code as first char of each line) and builds a PDF. > > An option on the command line allows to place an image as header (in fact > it's a Watermark) and another image as a footer, using onEndPage. > > > > There are some spool file that crash the class with StackOverflowError. I > tried some debbugging, and it seems to occour because sometimes the > carriageReturn() method in com.lowagie.text.pdf.PdfDocument (called by > add(Element) when the type is IMGTEMPLATE) forces a NewPage() that fires > another onEndPage event that tries to add another footer image, so the > add(Element) method calls carriageReturn() that forces a NewPage() that > fires a third onEndPage event and so on, until the Stack goes overflow. > > > > Commenting the carriageReturn() line (number 1760 in PdfDocument.java, > iText 1.01), the class runs to the end and the resulting pdf seems quite > acceptable. > > Obviously, it's a quick and dirty workaround. I think it would be better > to inhibit the recursive call of newPage()-onEndPage() (why adding a page, > and consequently a footer image, forces another page? The first page added > is empty, isn't it? Maybe contentHeight, which is checked to decide if a > newPage must be added, has to be reset somewhere?). > > I don't know very much iText library's internal structure yet, so I don't > know exactly what to do. > > > > Greetings, > > Enrico Battocchi > > <[EMAIL PROTECTED]> > > --------------------------------------------------------- > Stanco dello spam nella tua email? Prova GRATIS > il nuovo servizio ANTISPAM di superEva: > http://webmail.supereva.it/spam.html > --------------------------------------------------------- > > > > ------------------------------------------------------- > This SF.net email is sponsored by: SF.net Giveback Program. > SourceForge.net hosts over 70,000 Open Source Projects. > See the people who have HELPED US provide better services: > Click here: http://sourceforge.net/supporters.php > _______________________________________________ > iText-questions mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/itext-questions ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. SourceForge.net hosts over 70,000 Open Source Projects. See the people who have HELPED US provide better services: Click here: http://sourceforge.net/supporters.php _______________________________________________ iText-questions mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/itext-questions
