On Tue, Mar 13, 2012 at 12:14 PM, Reza Hedayat <[email protected]> wrote: > Hi iText developers > > The PdfReader class has a protected member variable called rebuilt, which is > set to true in some cases. Therefore, this causes a DocumentException in the > PdfStamperImp class as follows: > > [start: Fragment of com.itextpdf.text.pdf.PdfStamperImp] > ... > > PdfStamperImp(PdfReader reader, OutputStream os, char pdfVersion, boolean > append) throws DocumentException, IOException { > ... > if (append) { > if (reader.isRebuilt()) > throw new > DocumentException(MessageLocalization.getComposedMessage > > ("append.mode.requires.a.document.without.errors.even.if.recovery.was.possible")); > } > ... > > [end: Fragment com.itextpdf.text.pdf.PdfStamperImp] > > Based on the facts mentioned above, there are some questions that bother me: > > 1. What are the characteristics of a PDF document that are evaluated in > terms of setting the rebuilt property to true?
The PDf is broken and the xref table had to be rebult. > 2. Is it possible to determine these characteristics by a tool? Yes, the tool is iText. > 3. Is it possible to change these characteristics so that the rebuilt > property is not set to true anymore? Use PdfStamper to output the rebuilt PDF. This will result in a good PDF. > 4. What is the exact idea behind this logic that leads to a > DocumentException if the document was recognized as "recovered"? Append mode requires a good document as the changes are appended after the original. If the original is broken we may not even know where it ends to append new information. This is even more crucial when signatures are present. Paulo ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ iText-questions mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/itext-questions iText(R) is a registered trademark of 1T3XT BVBA. Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/ Please check the keywords list before you ask for examples: http://itextpdf.com/themes/keywords.php
