pngcrush
Optimizer for PNG Files that can also insert or delete specified Chunks
pngcrush is an excellent batch-mode compression utility for PNG images. Depending on the application that created the original PNGs, it can improve the file size anywhere from a few percent to 40% or more (completely losslessly). The utility also allows specified PNG chunks (e.g. text comments) to be inserted or deleted, and it can fix incorrect gamma info written by Photoshop 5.0 as well as the erroneous iCCP chunk written by Photoshop 5.5.
Não existe pacote oficial disponível para openSUSE Leap 16.0Distribuições
openSUSE Tumbleweed
openSUSE Slowroll
openSUSE Leap 16.0
openSUSE Leap 15.6
SLFO 1.2
openSUSE Backports for SLE 15 SP4
SUSE SLE-15-SP1
Distribuições não suportadas
As distribuições a seguir não são oficialmente suportadas. Use esses pacotes por sua conta e risco.