You’re right that it’s probably faked, but not right when you say a “direct screen grab” wouldn’t show pixellation. @oliverdarcy

— Charles Johnson (@Green_Footballs) September 25, 2015

All JPEG images have pixellation around sharply defined edges; it’s part of the compression algorithm. @oliverdarcy

— Charles Johnson (@Green_Footballs) September 25, 2015

If there’s one common misconception I could do away with, it would be that zooming in on an image and seeing pixellation means it was faked.

— Charles Johnson (@Green_Footballs) September 25, 2015

If you zoom in on *any* JPEG image that contains text, you’ll see pixellation around the edges of the text.

— Charles Johnson (@Green_Footballs) September 25, 2015

You can minimize this by setting the “quality” of the compression very high, but the higher the quality the larger the file.

— Charles Johnson (@Green_Footballs) September 25, 2015