some ideas from Corona Virus "Stay at Home" order

[Richard D. Williams]

A user can also turn off "Location Services" or use an app to remove the 
metadata from a JPG.

Richard

On 3/23/2020 1:25 PM, Laura Brody wrote:
> 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 
> <mailto: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 <mailto:ras at anzio.com>
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