Hello. Here's a bit more information that I could clarify on.
A new PDF gets generated each time to a temporary file on the server, and this filename changes each time as well. I can enter the URL to this temp file on several computers, the file will look the same on all the machines. For this reason I don't believe it has to do with a corrupt cached file saved on the browser side. The data I use to populate the PDF file is based off a very simple query to the database. I have yet to experience a timeout problem that some have described. The file loads completely and is rather small at around 12Kb. I've already checked the newsgroups and lowagie/iText related postings. My best guess is that sometimes document.add() is not putting in the objects I want it to. It's almost as if the object is getting clobbered by the garbage collector or somehow gets corrupted. I'm not sure how this is. I'm not even sure what's causing my problem. Right now all I have is this guess. Ideas appreciated. Thanks. Tommy Tam ----- Original Message ----- From: "UCOP" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, January 21, 2002 03:23 PM Subject: [iText-questions] lowagie/iText rendering/display problem (objects getting corrupt??) > lowagie/iText rendering/display problem (objects getting corrupt??) > > > > I have a problem in the resulting PDF generated using the lowagie/iText package. I >think the problem relates to the objects (PdfPCell, PdfPTable, Paragraph, Phrase) >somehow getting corrupted or garbage collected BEFORE they get put into the document >with document.add() . This is just a guess. Here is our setup, and our symptoms: > > Setup > ----- > * J2EE on Solaris > * Apache/IHS & WebSphere 3.5.5 Advanced Ed. (on Solaris) > * Netscape webserver & NetDynamics 5.0 (on Solaris) > * Both webservers and application servers are on the same machine > * We output the PDF into a temporary file, and then display the temp file in the >browser. > > > Coding > ------ > * We are using iText 0.80 from the website > * We are using PdfPTable and PdfPCell (instead of just Table and Cell) for our >objects that we are putting into the document > > > Symptoms > -------- > * When we click on the link to the cgi/servlet, the PDF that gets generated >displays. > * Repeatedly clicking the link results in PDFs that get generated that do NOT match >(repeated clicks should produce IDENTICAL PDFs). > * The problem appears in both browsers, IE and NS. > * The problem also appears if you save the file in any browser and open in Acrobat >(v4 or v5). > * There are NO errors displayed when the document is opened either in the browser, >or in Acrobat itself. > > Description > ----------- > The PDF that gets generated appears to have corrupt text (constructed as a Phrase or >Paragraph). I am unsure how this is happening. By corrupt I mean that the text I am >programmatically adding to document.add() is not what is appear in the document! >That portion of the document can be blank, a streak of color, or anything other than >what I tell it to be. The portion of the PDF that is not behaving correctly can >CHANGE. That is, this is not specifically limited to the header, the footer, or any >specific portion of the document. Unpredictably, some portion of the document gets >corrupted in the resulting PDF. > > What I can say is this: Each click should result in the same PDF that gets >generated. This is not always true. With enough clicks I might be lucky enough to >generate a "full" PDF without any objects corrupted. It's almost as if the objects >(PdfPCell, PdfPTable, Paragraph, Phrase, ...) I am creating and adding to the >document are getting garbage collected or somehow corrupted!!! > > Any help with this is greatly appreciated. I am not sure how this is happening at >all. If there is any information I am missing or need clarification on, let me know. > > Thanks, > Tommy Tam > > > Find the best deals on the web at AltaVista Shopping! > http://www.shopping.altavista.com > > _______________________________________________ > iText-questions mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/itext-questions > Find the best deals on the web at AltaVista Shopping! http://www.shopping.altavista.com _______________________________________________ iText-questions mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/itext-questions
