Hello Sir....is there any particular print size for the poster..?

2 formats :
- 210mm x 210mm for the sponsor brochure
- A3 portrait (297mm x 420mm) for print

Hello again is it possible to provide us with the exact text that you want to have on the poster....?

Main title : Devoxx France
Subtitle or tagline : La conférence des développeurs passionnés
Subtitle 2 (dates): Du 5 au 7 avril 2017
Subtitle 3 : 3 jours, 200 conférences, 36 exposants, 2500 personnes

You can use photos, pictures, etc