About PNGs from portfolio.commishes.com

stsyn
Elements of Harmony - Had an OC in the 2022 Community Collab
Non-Fungible Trixie -
Twinkling Balloon - Took part in the 2021 community collab.
Notoriously Divine Tagger - Consistently uploads images above and beyond the minimum tag requirements. And/or additionally, bringing over the original description from the source if the image has one. Does NOT apply to the uploader adding several to a dozen tags after originally uploading with minimum to bare tagging.
Best Artist - Providing quality, Derpibooru-exclusive artwork
Fine Arts - Two hundred uploads with a score of over a hundred (Safe/Suggestive)
Economist -
Cool Crow - "Caw!" An awesome tagger
The Power of Love - Given to a publicly verified artist with an image under their artist’s tag that has reached 1000 upvotes
Equality - In our state, we do not stand out.

Moderator
Everything here is related only for PNGs which was obtained from portfolio.commishes.com, not from ych.commishes.com. Subject of this post may be seen on another sites, though.
 
In 90% cases PNG is preferred when we decide, what image should be uploaded and stay, and it’s okay.
 
But not when it’s png from portfolio.commishes.com .
 
Look at this:  
fullsource image
 
Portfolio provides thumbnail, which is in indexed PNG — which results in only 256 colors possible. You can clearly see mosaic on zoomed in gradients.
 
It’s possible to extract original quality image from this site (also manually, but it’s harder) with this script (see first post for download links). You can do it manually using this link https://portfolio.commishes.com/image/NUMERIC_IMAGE_ID/original/ — like this
 
Keep in mind, that original can be technically worse — for exampled image thumb is 1920x1847 PNG, but original image is 1717x1652 JPEG — smaller and jpeg. Thumbs are not only in unsuitable format, but also upscaled — very easily noticeable here.
 
Conclusion: use script to obtain images from this site when possible.
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