A Note on Image Processing¶
TYPO3 CMS uses either ImageMagick or GraphicsMagic to automatically generate and resize images to a users specification.
If images aren't displaying correctly in the frontend and or the backend of your site, it may be the case that your chosen image library is not properly configured.
For more help on the topic, please refer to the Installation Guide.
You could also ask for help in the installation forums.
Please be aware that converting/reading PDF and AI files is no longer possible because GraphicsMagic and ImageMagick recently dropped this functionality for security reasons.