You're looking in the wrong place - those values have NOTHING to do with what you want, and in fact have been deprecated from PDF for a number of versions now.
What you are going to need to do is walk through the PDF page by page, use the content stream parser and look for any text operators. Leonard On Nov 27, 2007, at 9:56 AM, 021336 wrote: > > I am new to iText but could use some help getting pointed in the right > direction. > > When receiving a PDF from an outside source that contains text we > would > prefer the text to be selectable so it can be searched and is not > just text > contained within an image. Therefore, if I can determine if a PDF > contains > Text only, Image and Text, or Image only I can pull aside the Image > only > ones so that a person can visually determine if the image is a true > graphic > or contains text in a graphic format and should be OCR'ed. > > Looking at sample files in the TreeViewPDF tool I noticed that the > PdfDictionary listed a PdfArray object that can contain references > to /PDF, > /Text, and /ImageB that appeared to detect these three scenarios > appropriately. > > Could someone provide me a code snippet or point me in the right > direction > (including references I could find in the iText book) that would > show me how > the TreeViewPDF tool extracts this information from a PDF file? > Also, any > comments about the legitimacy of solving my problem this way. > > Thanks, for any help you might be able to provide. > -- > View this message in context: http://www.nabble.com/Need-to-detect- > PDF%27s-w-Image-only-vs.-Text-tf4882217.html#a13972254 > Sent from the iText - General mailing list archive at Nabble.com. > > > ---------------------------------------------------------------------- > --- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2005. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > iText-questions mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/itext-questions > Buy the iText book: http://itext.ugent.be/itext-in-action/ > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ iText-questions mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://itext.ugent.be/itext-in-action/
