source smaller
When the image at the source is smaller (lower resolution) than the image on Danbooru.
This may be because the artist revised the original image and replaced it with a smaller version after it was uploaded to Danbooru, or because the uploader uploaded an upscaled version of the image, or because they uploaded a larger version of the image that actually came from a different source.
See also
- has downscaled revision
- source larger - the opposite case
- resolution mismatch
This tag implicates resolution_mismatch (learn more).
The following tags implicate this tag: has_downscaled_revision (learn more).