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

Is it possible to upload an atlas from spine with indents on sprites?
@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