[gdal-dev] Something wrong with writing a big raster into PDF

[Even Rouault]

Hi Jukka,

did you try with -co TILED=YES ?

Even


> Hi,
>
> I can't make usable pdf files from some original maps and I do not
> understand what goes wrong.
> I am testing on Windows 7 and GDAL-dev from gisinternals, both 32 and 64
> bit. Images are like this one:
>
>
http://kartat.kapsi.fi/files/taustakarttasarja/taustakartta_80/5m/etrs89/png/UM5L.png
>
> Command can be simplified to
> gdal_translate -of pdf UM5L.png UM5L.pdf
> Everything seems to go alright and gdalinfo shows normal information from
> the pdf. However, if I open the UM5L.pdf file with Acrobat Reader it does
> not show a map. Everything is just pure white.
>
> I planned to check what happens if read the map back from pdf as
> gdal_translate -of gtiff um5l.pdf um5l.tif
> After fifteen minutes I estimate that the output will be ready after an hour
> or so which is all too slow for a Corei7 CPU and 8GB of RAM.
>
> I had another try with the same binaries with a small png file (2000x2000
> pixels) and conversion into pdf was fast and successful. Is there perhaps
> something that does not scale up properly when the raster size gets bigger?
>
> -Jukka Rahkonen-
>
>
>
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