some ideas from Corona Virus "Stay at Home" order

[Fairlight]

If one were in charge of a dictatorial country, it would be useful for an
extra layer of geofencing photos from 'prohibited' 'evil' countries to
keep them out of sanctioned social media.

m->


On Mon, Mar 23, 2020 at 10:41:55AM -0700, Bob Rasmussen via Filepro-list thus spoke:
> On the topic of GPS coordinates: what use case can you think of for this?
> I've been aware of geotagging (an dother EXIF data) in photos and videos for
> years, and have written code to extract that data from the files, but have
> not come up with many use cases. Ideas?
> 
> On Mon, 23 Mar 2020, Richard D. Williams via Filepro-list wrote:
> 
> > Sometimes I think of some neat things I've done over the years and just
> > feel like sharing.
> > 
> > Here are a few: (linux OS)
> > 
> > Merge PDFs into a single new PDF:
> > /usr/bin/gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite
> > -sOutputFile=file_new.pdf file1.pdf file2.pdf
> > 
> > Extract Pages from a PDF:
> > i.e. page 1-4
> > /usr/bin/gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -dFirstPage=1
> > -dLastPage=4 -sOutputFile=file_new.pdf file1.pdf
> > 
> > Extract Pages from page # to end:
> > /usr/bin/gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -dFirstPage=2
> > -sOutputFile=file_new.pdf file1.pdf
> > 
> > Get the numbers of pages in a PDF:
> > /usr/bin/pdfinfo file1.pdf | grep "Pages:" | sed s/"Pages:"//g | sed s/" "//g
> > i.e.
> > 8
> > 
> > Get the Lat/Long from a JPG image:
> > exiftool -n -gpslatitude -gpslongitude file2.JPG
> > i.e.
> > GPS Latitude                    : 31.4998652777778
> > GPS Longitude                   : -100.448014444444
> > 
> > I hope someone finds this useful.
> > 
> > Be safe out there,
> > 
> > Richard D. Williams
> > 
> > 
> > 
> > 
> > 
> > -- 
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> > https://www.avg.com
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> 
> Regards,
> ....Bob Rasmussen,   President,   Rasmussen Software, Inc.
> 
> personal e-mail: ras at anzio.com
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