Just chiming in as a qgis-user: the best (imho) open source DTP software is build with QT: scribus (https://www.scribus.net/). Afaik it does support most things professional publishers need, such as CMYK workflows, high quality PDF exports, etc. Might be worth taking a look at, or contacting the devs about this, as they seem to have solved most of these problems?
Vincent. On Fri, Feb 17, 2017 at 8:50 AM, Even Rouault <[email protected]> wrote: > > Unfortunately this is quite involved. At the moment QGIS is highly > > > tied into Qt's painter and printer framework. It's going to be very > > > difficult to change this and make a change like using another library > > > for exports. I think the most feasible approach would be to get the > > > changes we require implemented upstream in Qt itself. It's likely less > > > work, and also benefits other Qt projects too. > > > > The GDAL PDF writer creates PDF "at hand" and is able to create layered > PDFs : > > http://gdal.org/frmt_pdf.html > > Currently one raster layer, one "annotation" layer for legend, and several > vector layers, mostly due to the API constraints of the GDAL API. > > I'm not sure how feasible it would be (would require at least renumbering > PDF objects and merging drawing instructions), but potentially you could > render several layers into separate PDFs and then merge the PDFs into a > single layered one > > > > Even > > > > -- > > Spatialys - Geospatial professional services > > http://www.spatialys.com > > _______________________________________________ > Qgis-developer mailing list > [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer >
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