some ideas from Corona Virus "Stay at Home" order

[Laura Brody]

I read an article that said that the police have used the GPS info in
photos to find people that have a social media account, but are "missing".
Teens that ran away, etc Once they  know where the photo was taken, they
have the state and county to start looking for that person. I guess that it
could also be used in a legal case. What if someone had video or pictures
that prove something, but when you extract the GPS info, turns out that the
event was several miles away from what the person claimed. Fraud and
perjury. And they are busted. I guess that there are other uses too, I just
can't think of any.

Laura Brody

On Mon, Mar 23, 2020 at 1:43 PM Bob Rasmussen via Filepro-list <
filepro-list at lists.celestial.com> wrote:

> 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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>
> Regards,
> ....Bob Rasmussen,   President,   Rasmussen Software, Inc.
>
> personal e-mail: ras at anzio.com
>   company e-mail: rsi at anzio.com
>            voice: (US) 503-624-0360 (9:00-6:00 Pacific Time)
>              fax: (US) 503-624-0760
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>                   10240 SW Nimbus, Suite L9
>                   Portland, OR  97223  USA
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