#70 - Store permutations of the image processing pipeline

Identifier #70
Issue type Feature request or suggestion
Title Store permutations of the image processing pipeline
Status Closed (no changes needed)
Handling member Chris Graham
Addon galleries
Description When images are added to galleries they are resized to a max width/height, and watermarked. NB: this has nothing to do with thumbnails.

Store all permutations. We would have:
- Image
- Watermarked image
- Resized image
- Resized and watermarked image

Allow members to download the watermarked image (i.e. non-resized one) via a (commented out by default) link in the templates.

If watermarks are changed, re-calculate all the watermarked images.

Care needs taking because off-course for past data not all these files will be available- make sure we don't introduce stack traces in this event.
Steps to reproduce

Funded? No
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