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What techniques do people commonly use for uploading, storing and presenting images with a CMS?
Do you store them in the database or on the file system?
Do you generate thumbnails on upload? Or on the fly, then maybe cache them for reuse? Or rely on browser scaling?
Typically, most content management systems will store images the actual data of image uploads to the file systems and then add a link to the file within the database. Thumbnails can either be generated on upload or on first request (on the fly is considered inefficient, especially given the cheap cost of storage). Browser scaling is a bad idea (images may be uploaded as multi megabyte uncompressed files) but is done by some systems.