Le mercredi 18 mai 2016 16:50:03, Frank Broniewski a écrit : > Hi, > > I want to turn my QGIS map composer PDF into a GeoPDF or a geospatial > PDF. Unfortunately that is not supported, just on a per layer basis from > within the main program. I could export my map to TIFF with a world file > and use GDAL on that, but I'd like to maintain the vectors and text in > the output. > Since GDAL supports the creation of GeoPDF, I'd like to ask if there is > some kind of documentation on the web where the standard is described
Sure. There are 2 specifications mentionned in http://gdal.org/frmt_pdf.html : - Adobe Supplement to ISO 32000: http://www.adobe.com/devnet/acrobat/pdfs/adobe_supplement_iso32000.pdf - OGC GeoPDF Encoding Best Practice Version 2.2 (08-139r3) : http://portal.opengeospatial.org/files/?artifact_id=40537 But I doubt you'll enjoy their reading (especially the ISO 32000 one). In practice the support has been developed by dumping existing files. > of > if someone knows an OpenSource library which supports the creation of > GeoPDF. > I thought of writing a, preferable in Python, program which would add > the necessary tags and data to the PDF in order to turn it into a > GeoPDF. The GDAL PDF driver supports update of an existing PDF to add georeferencing to it. You can do that for example with the -a_ullr and -a_srs flags of the gdal_edit.py script. You can also look at the pdf_update_gt() test in https://svn.osgeo.org/gdal/trunk/autotest/gdrivers/pdf.py This is also documented in the "Update of existing files" section of http://gdal.org/frmt_pdf.html Even -- Spatialys - Geospatial professional services http://www.spatialys.com _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
