Re: az - Telefax/OCR Test

On 30.04.2024 16:43, Stefan Claas wrote:

Ok. I created 1000 random bytes with OpenSSL, converted
them with az, with a line length of 50 characters set.
 Then the file was opened in LibreOffice, with the settings
of 16 pt, Liberation Mono font and saved as .pdf. With
these settings, 2000 characters fit exactly in an A4 page.

But QR code exists since a long time. This is also
a pdf with one A4 page, but if you decode it, you get
a 10 kByte jpg, which is 10x the amount of data of your
text page.
http://onlib.de/temp/demo.pdf
And if you have more data to transfer, use a QR code
video, for example:
http://onlib.de/temp/qr.mp4
You can upload your video to youtube, so anybody can
download and decode it.
If you decode the QR code video, you will get a zip file
with some pictures. The password for the pictures is:
"The quick brown fox jump"
And if you want to encrypt or hide the video, take a
look at:
http://onlib.de/pub/pfv/
For example, the video:
http://onlib.de/pub/pfv/demo.mp4
has one unencrypted video (so you can just click the
above link and watch the unencrypted video) and two
encrypted videos and one zip file which you can only
access if you download the file and enter the correct
password.