by john » Sat Sep 23, 2017 12:57 pm
Ooops, sorry, Peter. I should have been more careful with the spelling of your name.
Pixel reduction is no real mystery. In whatever application you use to view your images, you will probably have a way to resize these. You may find that you have various size options listed - cms, inches, pixels, etc. Simply choose pixels and save the image as 690pixels [the longest side]. Before doing this, it would be safest to make a copy of the image before resizing to leave you with the original unaltered.
However, if you do want to email them to me, I will send you a private message [PM] here with an email address for me. Hopefully, your email service does not limit image size. If you do this, I can resize and either return them to you or post them here on your behalf.