Since QGIS uses GDAL, does any map exported as a PDF become a Geospatial PDF? I am hoping to import maps from QGIS into the Avenza PDF Map app on my phone. Previous posts mentioned exporting as Geospatial PDF's and GeoTiff's, but none had an exact answer or process.
Let me quote Andreas on the mailing list (Status Feb 05, 2012):
"no - GeoPDF is not yet supported in QGIS.
If you want such a feature in QGIS, please consider sponsoring the GDAL/OGR library to include support for this format. See http://www.gdal.org/ogr/ and supported formats: http://www.gdal.org/ogr/ogr_formats.html
QGIS is using the OGR library for vector formats. Once GeoPDF is supported in OGR, it should be easier to support it in QGIS. On the other hand, many other GIS packages and tools would benefit from the additional format."
Update Nov 2012:
GDAL/OGR >= 2.0.0 can read and write geospatial PDF with vector features.
Read support requires linking to podofo or poppler libraries, but write support does not.
But at least QGIS via OSGeo4W is still built with GDAL/OGR 1.9.
Update October 2014:
From GDAL 1.10 onwards, PDF can be read and created from raster and vector soruces. Both OSGEO4W and gisinternals are build with PDF support.
But QGIS has still some problems with it: http://hub.qgis.org/issues/8912
It is now possible to export a raster layer in QGIS to GeoPDF. QGIS 2.4.0 can not read its own output, but current qgis-dev 2.5.0 can. A layer stack can be created with the commandline window of
Raster -> Conversion -> Translate using the GDAL command line example from the manpage, but QGIS-dev takes just the first layer. In a PDF reader all layers are selectable.
Yes, you can make Geospatial PDF from QGIS raster maps to Avenza PDF map.
If you have vector layers you can save the QGIS map to an Image (Projects > Save as Image...). Use this image as input in a Geospatial PDF convertion from menu Raster > Convertion > Translate (Convert Format)...
Upload PDF to Avenza PDF Maps. I use Android, don't know the dark side OS.
I did manage to get 500 MB of oriented scanned raster maps uploaded to Avenza. If the map bound is large, the max zoom in level is not enough for details.
You can also check Latuviitta's guideline about "Making geospatial PDF maps from OSM with GDAL": http://latuviitta.org/documents/Geospatial_PDF_maps_from_OSM_with_GDAL.pdf (PDF).
Not Quantum GIS, but with GDAL.
You should be able to export from QGIS as a geotiff and that can then be brought into PDF Maps.
For the purpose of adding context to this answer, the Avenza PDF maps app can read GeoTiffs. If you look on their home page www.avenza.com/pdf-maps they list one of the apps features as being able to "Read geospatial PDF, GeoTIFF, and GeoPDF® maps". So depending on the users final map requirements, they may be able use the GeoTiff format if that works for them.
Having just completed this process on my own, you most assuredly can use QGIS to make a geo-referenced PDF. The answer by Jakob from May 2015 is broadly correct. As they suggest, you save the project as an image and then use Raster/Convert/Translate to save it as a PDF. However, there are a few fine points they left out that cost me a couple of hours:
- Make sure you have installed the GDAL Geospatial PDF plugin. While
QGIS installs GDAL by default, many installations do not install
the PDF plugin automatically. You'll know you're missing the
plugin if you don't see a PDF choice in the conversion dialog's
output filetype list
- When choosing the Target SRS, select the SRS of the basemap, even if it's not the default SRS for the project or the vector data
- The example shows "High Compression" as the Creation Option. My installation didn't support it. JPEG compression works just fine.
Once you sort out these details it works like a charm. Previously, I'd written a bunch of scripts to do the conversion in the Terminal. This is much easier!
To my knowledge QGIS does not currently support the creation of geospatial Pdf's.
It can however be done relatively easy using gdal - see this tutorial :
There is an experimental plugin for QGIS called "GeorefExport" that will allow you to export a Geospatial PDF (as well as other formats) maps from QGIS directly.
From what I can tell, though, this plugin does not work from a Composer template, just the primary editor map frame.
Since QGIS 2.16, just export from the print composer. By default, it will be a GeoPDF.