0x00
mac 系统下,要制作 telegram 表情包,需要将图片转化为 png 格式并有特定尺寸要求,怎么办?
0x01
brew install imagemagick
convert 1.jpg 2.png
The image file should be in PNG format with a transparent layer and must fit into a 512x512 square (one of the sides must be 512px and the other 512px or less).
convert -resize 512x512 2.png 3.png
两条命令合成一条
convert -resize 512x512 1.jpg 2.png