Hi @Wile_E_Coyote, I am trying to first solve the @ksmith issue: which is the truncated output for the png and gif files. None of the ROOT versions I am suing produce such truncated output after the fix I did. I do not understand why he gets this truncation with the small macro example I posted. Then I will look at your suggestion in this post . If you think there is an other issue wihen running “identify” it might better to make an other post or a Jira report. Right now I am debugging an other issue not related to this topic.