You COULD look to see if there are update sections in the PDF - and then examine what's in the update section...
-----Original Message----- From: AJ Weber [mailto:awe...@comcast.net] Sent: Tuesday, February 14, 2012 11:47 AM To: itext-questions@lists.sourceforge.net Subject: Re: [iText-questions] Strip Annotations? In this case, as I said, I see that the original PDF was created with iText. There is an XObject Dictionary with one Stream object ("/lm0" -- I'm verifying if that is always the name). However, the end-user added their comment (and yes, I don't know why they didn't use a specific comment tool) with some version of Acrobat -- that much I do know. I'm guessing they used the Text Edit tool or something instead of the Commenting or Stamp options in that app. Too bad we can't tell when a specific object was added to the file (I CAN see that the modify date of the file is different from the create date). On 2/14/2012 11:32 AM, 1T3XT BVBA wrote: > On 14/02/2012 17:23, AJ Weber wrote: >> Right. How do I determine if the text in the /Contents stream is the >> intended contents of the page, or whether someone added it >> after-the-fact? Ugh. Users... > It depends on how the text was added. > > For instance: if they used PdfStamper, there will be different content > streams in an array. > Maybe the content you want to remove is in one array, which you could > remove. > > Or maybe it was added as an XObject. > In that case, blanking out the content of that XObject would solve > your problem. > > Or maybe it's really inside the main content stream. > In that case, you need to write a PDF syntax parser (I've written > several in the past) using PRTokeniser. > Let the parser copy all the PDF syntax except for the Text Operators > (and its operands) that draw the text you want to remove. > > Have fun! > > ---------------------------------------------------------------------- > -------- 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 > iText-questions@lists.sourceforge.net > 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 ------------------------------------------------------------------------------ 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 iText-questions@lists.sourceforge.net 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 ------------------------------------------------------------------------------ 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 iText-questions@lists.sourceforge.net 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
