Need  advice, Right now our production site with 3000 Pictures they are stored into Database.

1. First We want to change it to file system, which can be done by admin panel.

2. Second Default image quality is 100 for all images stored in database we want to change to 90, this also can be done in admin but i have few questions.

The icon hover help for Default image quality  says: "The image quality to be used for uploaded images. Once changed you have to manually delete already generated thumbs."


Is this property for Already uploaded images or images which will be newly added for new products, Do I have to delete thumbs manually for all 3000 images ?

My requirement is I want to change image storage from database to file system with Default image quality of 90 for existing product images, please advice , Is this possible from admin or should i write custom code ?

Any help would be great.