The invention concerns a security element (1) and a value-bearing document safeguarded by such a security element. The security element (1) includes a strip-form multi-layer body (10) with a carrier film (11) and at least one decorative layer (12), as well as a first and a second adhesive layer (14, 15). The first adhesive layer (14) is provided on a first surface of the multi-layer body (10). The second adhesive layer (15) is provided on an opposite second surface of the multi-layer body. The security element has two or more first regions (21) in which the first adhesive layer (14) respectively covers the first surface of the multi-layer body and two or more second regions (22) in which the second but not the first surface of the multi-layer body is respectively covered by the second and the first adhesive layer respectively and in which a surface structure is respectively formed in the first surface. First and second regions (21, 22) are in this case arranged in mutually juxtaposed adjacent relationship.