A method for identification of a section of a continuous web having a main line of extension and movable in a direction of feed according to a predetermined path, said method comprising: a step of definition on said web of a reference associated with said section, a step of reading said reference to identify said section using the contrast between said reference and said web, said method being characterized in that said step of definition of a reference comprises a step of embossing said web using an embossing device, said reference comprising at least a first embossed segment and a second unembossed segment, said first segment having a contrast compared with said web which is different to the contrast of said second segment compared with said web, said first and second segments (206, 208) being positioned on said web along respective strips (206a, 208a) parallel with said main line of extension, said method comprising a step of reading the reference out of said first and second segments (206, 208) which has greatest reading contrast, said section being identified based on the segment having the greatest reading contrast. said embossing device comprising a first embossing roller and a second embossing roller forming a passage for a web to be embossed, said first embossing roller and said second embossing roller being relatively positioned for embossing the web passing through the passage, at least said first embossing roller comprising on its outer surface means for imprinting a reference on the web, the imprinting means comprising a first toothing having a first impression and at least a second toothing having a second impression, the second toothing comprising a zone without teeth; said embossing step comprising imprinting said first segment by means of said first toothing according to a first pattern, imprinting a decorative pattern by means of said second toothing and defining said second segment by means of the zone without teeth. a step of definition on said web of a reference associated with said section, a step of reading said reference to identify said section using the contrast between said reference and said web, said method being characterized in that said step of definition of a reference comprises a step of embossing said web using an embossing device, said reference comprising at least a first embossed segment and a second unembossed segment, said first segment having a contrast compared with said web which is different to the contrast of said second segment compared with said web, said first and second segments (206, 208) being positioned on said web along respective strips (206a, 208a) parallel with said main line of extension, said method comprising a step of reading the reference out of said first and second segments (206, 208) which has greatest reading contrast, said section being identified based on the segment having the greatest reading contrast. said embossing device comprising a first embossing roller and a second embossing roller forming a passage for a web to be embossed, said first embossing roller and said second embossing roller being relatively positioned for embossing the web passing through the passage, at least said first embossing roller comprising on its outer surface means for imprinting a reference on the web, the imprinting means comprising a first toothing having a first impression and at least a second toothing having a second impression, the second toothing comprising a zone without teeth; said embossing step comprising imprinting said first segment by means of said first toothing according to a first pattern, imprinting a decorative pattern by means of said second toothing and defining said second segment by means of the zone without teeth.