add-photo continued ...

Stefan Claas sac at
Wed Sep 4 20:45:25 CEST 2019

Hi all,

some of you may remember the add-photo thread we had a while ago
and I wondered why the max image size for a UAT packet is 16 MB.

Recently I saw a Twitter post explaining that a .jpeg image header
can contain 16 MB of data. I do not have the link currently handy,

So here is a little keyserver test showing data in a .jpeg header
of a UAT packet.

It is a zipped folder containing 10 little 'messages' created with

As keyserver I used the Ubuntu keyserver because it is then easier
for users to extract the data. Simple right-click on the image and
then once saved as index.jpg do an 'unzip index.jpg' to obtain the
folder with the text files.



box: 4a64758de9e8ceded2c481ee526440687fe2f3a828e3a813f87753ad30847b56
  certified OpenPGP key blocks available on

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