A photosensitive composition comprising, a polymerizable compound having an ethylenically unsaturated group, a metallic arene compound, and an acid generating agent, wherein, the polymerizable compound is a multifunctional acrylate compound containing an amide bond and a secondary or tertiary amine group in the molecule, and the acid generating agent is a compound containing a trihalomethyl group, a dihalomethyl group or a dihalomethylene group.

 
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> Process of preparing planographic printing plate

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