[gdal-dev] Regarding DPI in Geospatial PDF

Luca Delucchi lucadeluge at gmail.com
Tue May 19 01:03:19 PDT 2015


On 13 May 2015 at 09:30, Vankadara, Sunil
<sunil.vankadara at hexagongeospatial.com> wrote:
> Hi Jukka,
>

Hi devs,

I did several test, and

>
> I could understand from your mail that the mediabox is nothing but the image
> size in terms of width and height and the user unit is nothing but each
> pixel size.
>
>
>
> Does it mean it is the PDF readers responsibility to dynamically resample to
> the given parameters in Media Box and User units? But Acrobat adobe reader
> is not resampling the image dynamically in displaying the image
>
>
>
> Few observations from my side are
>
> ·         I haven’t noticed any differences in Page size for different DPI
> values.
>

I notice different size in the page properties using Okular

> ·         There is no difference of the image on the paper for different DPI
> values. ( I took the print out and noticed the differences physically )
>

I didn't try to print, but If I zoom to the same percent I saw two
different region for the same screen


>
> Regards
>
> Sunil
>

-- 
ciao
Luca

http://gis.cri.fmach.it/delucchi/
www.lucadelu.org


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