> On 15 Mar 2018, at 15:58, Nikolai Tasev <niko...@nand.bg> wrote: > > On 3/15/2018 4:26 PM, Shawn Rutledge wrote: >> In the future I think it will make sense to use PDF for vector icons too (in >> color, even). (Some frameworks already can do this.) Then instead of an icon >> font, you could have one PDF file with all the icons for your app, one icon >> per “page”. I hope to eventually support using a PDF file with an ordinary >> Image in QML, but we have to add API for selecting the page, and there are >> other issues with caching and so on. I had patches to get it mostly working >> a couple of years ago, it just wasn’t 100% ready for integration. > > The PDF format specification is even more complex than the SVG one аs it is > used also to control printing output. The good PDF RIPs are all proprietary. > I had quite a lot difficulties using Ghostscript and Poppler until I switched > to a library with a paid license. So it will be again limited to a subset of > the specification and maybe slow. QtPDF is using pdfium. http://code.qt.io/cgit/qt-labs/qtpdf.git It is complex third-party code (but open source), and the rendering is again done in software, but it seems fast enough. I haven’t tried to compare rendering times: the same drawing in SVG vs. PDF.
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