Ali I have a compactly sliced atlas, but for a certain task I need to make sure that there is a small indentation on each page in the atlas. Is it possible to upload the atlas of their spine in this way without adding samples to photoshop 
Harald @Ali I'm not sure I understand correctly what you are asking. Do you mean that you want to export your atlas with padding? See the documentation here: http://esotericsoftware.com/spine-texture-packer#Region-padding
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