some ideas from Corona Virus "Stay at Home" order

[Bob Rasmussen]

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)
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