Ladies/Gents, I have been using GeoPDF capability with 0.16.3 for a while and enjoy the capabilities GDAL provides. I have wanted to add the capability to turn Layers On/Off using the features provided. Lets assume I have a file called world.pdf that contains more than 5 Layers with sub-layers.
Project Configuration: GDAL_repos: 9-28-2013 Poppler: version 0.16.3 OS: Windows XP SP3 Build: MSVC 2008 Once built with the configuration above, I used the technique provided in the frmt_pdf.html page using gdal_translate.exe to turn off 1 Layer: $ gdal_translate.exe c:\world.pdf out.tif --config GDAL_PDF_LAYERS_OFF "Grids" I assume I used the proper request to only turn off "Grids" and allow all other LAYERS "On". The problem I get is when it executes more layers are turned "off" than the single layer specified. Here are my issues: 1. How do I request to output a file that turns off one or more Layers and keeps the others on? 2. According to the frmt_pdf.html, under the Configuration Options, GDAL_PDF_LAYERS and GDAL_PDF_LAYERS_OFF both state "When this option is specified, layers not explicitly listed will be turned off". I hope a quick copy & paste was performed... Which one should explicitly default to turned On? I would think GDAL_PDF_LAYERS_OFF. 3. When I executed gdal_translate.exefrom the request above, I got the following Error: ERROR 1: Could not find a OCG with Ref (13:0) ERROR 1: Could not find a OCG with Ref (30:0) ...repeats with different Ref() numbers ERROR 1: Could not find a OCG with Ref (153:0) This is a known Poppler issue as you can see here: https://bugs.freedesktop.org/show_bug.cgi?id=39637 It states that the fix was added to Poppler version 0.17.2 >= If that is true, the documentation (frmt_pdf.html) should indicate that. I do not know if that is why my generated file is not correct as I do not know what is effect by this recoverable error mentioned above. I have not added a ticket for GDAL before, where is the location I can add future bugs if they arise? Robert
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