Hola Lauryn
Aquí tienes el manual:
darktable | user manual | darktable
Creo que lo que buscas es esto:
3.4. Exporting images | user manual | darktable
Your changes to an image is not saved as in a regular image editor darktable is a non destructive editor which means all your changes are stored in a database and the orginal image is untouched and therefor you need to export your images to get an "image" file to distribute with your special processing.
Images are exported from lighttable and is done using the export module in right panel, export means in general, save my developed RAW image as an jpeg.
The export is also modularized into storage and format. darktable is shipping several storage modules such as save on disk, picasa and flickr webalbum and more, format modules is the actual image formats such as jpeg,png,tiff,openexr and more.
Select images on your lighttable that you want to export, then choose your target storage and format to use and set the maximum width and height image restraint, this means that none of the images will be bigger than any of the width/height restraint. Leave the width and height restraint as zero value if you want orginal resolution and hit the export button.
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