El Divendres, 18 de maig de 2012, a les 17:03:28, Fabio D'Urso va escriure: > On Friday, May 18, 2012 03:34:53 PM Francesco Gabbanini wrote: > > I noticed that version 0.20 of Poppler has introduced the possibility of > > adding, modifying and removing annotations from PDF documents. These > > features seem to be available through the qt4 interface library as well. > > Correct. Note that only a subset of what we promise to do is implemented > (setters for some properties, notably timestamps and popup window, are > noops). > > I have read the qt4 interface documentation and I found that annotation > > creation seems to be possible by calling the static method > > Poppler::AnnotationUtils::createAnnotation(const QDomElement > > &annElement), which returns a pointer to an Annotation. > > It's one of the two possible ways. The other one is to use the constructor > of the annotation type you want to create (eg new InkAnnotation) and use > setters to set the properties. > > > I was wondering what is that QDomElement & that has to be given as an > > input to the method. > > It's a undocumented format to describe the annotations. You can some get > examples calling AnnotationUtils::storeAnnotation on existing annotations. > If you have Okular installed, it's also the same format Okular uses to store > user-created annotations internally (in ~/.kde/share/apps/okular/docdata/). > > Is there some documentation around describing how to work with > > annotations using the qt4 interface? > > Or maybe, does anybody have a simple example on how to create > > annotations in a PDF using the qt4 interface? > > No full examples yet. In general, it goes like this: > Document* document = Document::load(inputfilename); > Page* pdfPage = document->page(pagenum); // 0-based > InkAnnotation *ann = new InkAnnotation(); > // Set its properties here ... > pdfPage->addAnnotation(ann); > // ... or here (they both work) > PDFConverter *conv = document->pdfConverter(); > conv->setOutputFileName(outputfilename); > conv->setPDFOptions(conv->pdfOptions() | PDFConverter::WithChanges); > conv->convert(); > > Supported annotation types are: Text, Line, Geom, Ink, Stamp, Highlight. > Note that StampAnnotations are stored to file, but they're not rendered by > poppler at the moment. > > *IMPORTANT*: > Oops! I forgot to make TextAnnotation ctor public. I'm attaching a patch.
Pushed, since this changes the ABI in MSVC it'll have to wait until poppler 0.22 Albert > > Fabio _______________________________________________ poppler mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/poppler
