Activities: Simple Certificate
This is a new activity module, Simple Certificate, based on certificate module maintained by Mark Nelson, but simpler, no needs to change any code to add a new certificate format, and moodle's administrator don't need to upload image files.
The certificate text are full customizable, using special text marks that will be replaced by variables (like student name, course name, grade, ...), don't need to change any language file.
Please, DO NOT ASK for technical support in this page
Visit PORTUGUESE speakers forum (portuguese only)
or
Video about basic usage of this plugin:
Thanks Matthew Nagy
Como usar o plugin, em português:
Obrigado Marcelo Claro pela excelente contribuição
Twitter: @smplcertificate
If you like this plug-in and wants to help the developer, please make a donation (USD):
Se você gostou desse plugin e quer ajudar o desenvolvedor, faça uma doação (BRL)
Bitcoin 
17EtMRsvk84uQSbQxXxQjpk4RFQFrHFiKG
I have a question.
When i click on the link: "view # issued certificates" the next screen has in the left upper corner in small letters a number (13086).
What does that mean?
Thanks a lot! Kees.
How can i delete an issued certificate?
Kees.
Only cron process can remove issued certificate by now. You can configure that in plugin configuration page (/admin/settings.php?section=modsettingsimplecertificate), on "Keep issued certificates for:" option.
I have a problem with Russian. I only see the characters??? place of words. What can you advise to fix it?
However I have been a problem with the QR code: I get an error when I access the link generated by the QR code:
error/Invalide certificate code
If the QR code is: f345c4e0-8182-11e2-afa8-4b7df1272463 it generates de folowing link:
http://[our_url_moodle_server]/mod/simplecertificate/verify.php?code=f345c4e0-8182-11e2-afa8-4b7df1272463
Can I disable the QR page in the certificate?
This is odd, because i have tested it, the code is the same that was printed below QR code picture? it's the same at mod/simplecertificate/report.php ? (column code).
In this version you can't disable it, may be in future version.
There are no certificates that have been issued
I'll test version 1.2.3 for Moodle 2.4 and I'll tell you if it works fine.
May be this is the cause your QR code error!
https://tracker.moodle.org/browse/CONTRIB-4120
Thank you to specify which image format can be used for the bottom of the certificate. png does not seem to be accepted.
Daniel
I hope you update the Simple Certificate for use with 2.5 as soon as possible. I would like to update from 2.4 to 2.5, but want to use your plugin.
Bob