On 25/01/2018 14:41, ss wrote:
On 25/01/2018 14:04, charles wrote:
Next time use blue ink?Â* Some people claim blue ink was invented to
allow a copy to show the difference between the original writing and
a signature.

Many official documents in the UK insist on black ink and if you go over
the line of the signature box it is invalid, eg
Passport form
Last national survey.

I always thought that was because early copiers and scanners couldn't
see blue ink. Now that all such scanners have been superseded, it would
make sense to allow blue.

I have to sign off other people's drawings and documents at work and the
standard is that the signature must be in black, but I have worked in
other places where the standard is blue - specifically so that the
original can be identified amongst black and white copies, pdfs, etc.

SteveW