Images and presentations
To upload images and files, use Special:Upload
List of already uploaded images and files: Special:ListFiles
See all the images on github: https://github.com/openfoodfacts/openfoodfacts-resources
[Blog ideas]
Images
Logos
If you resize the logo, the width must be a multiple of 200 so that the bars of the colored barcode correspond to exact pixels and are not anti-aliased. It took a lot of effort to make the logo pixel perfect, so please don't resize it to other sizes than 200, 400, 600, 800 etc. :-)
Presentations
French
fr:File:OFF-Pierre-keynote.ppt