Hi Pedro,
I'm sure that the guys that wrote exiftool knows what they are doing.
It is not that hard to update a RAW file without breaking it. even if
you change the length of specific fields.
In the site I pointed to, they have a table that tells for every RAW
type, which field they know to read only and which to read and write.
Anyway, as I suggested, a backup is a good practice.
The change can be done to the jpg file instead.
But if someone work flow is to save only RAWs and XMPs and he wish to
update the data inside the RAW, this tool is a good option.
and Not sure it is less safe than updating the XMP
Izack
On 29/11/14 11:27, Pedro Côrte-Real wrote:
On Sat, Nov 29, 2014 at 8:24 AM, Izack Varsanno <[email protected]> wrote:
Hi Jim,
When I have to change things in my EXIF, I'm using the exiftool application
site: http://owl.phy.queensu.ca/~phil/exiftool/
To change the "copyrights" field, you have to use something like:
$ exiftool -copyright='Your name and phone number' *.NEF
Just make sure you are backing up everything before...
Note that altering RAW files is generally a very bad idea. Almost all
formats (and definitely NEF) are based on TIFF which uses absolute
offsets everywhere. That means that if you change the length of a
field somewhere you may very well break the file completely. It may
work in this case if the format actually has a fixed length field for
this but I wouldn't bother.
What's the use case for putting name and phone number in raw files anyway?
Cheers,
Pedro
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