Läbipaistvus on oluline tunnus pärgamendi seisundi ja kvaliteedi hindamisel. Läbipaistvuse visuaalseks hindamiseks kasutatakse läbivat valgust.
Läbipaistvus on õhukese, ca 0,8 mm ja õhema pärgamendi tunnus. Pärgamentide läbipaistvuse põhjusi on mitmeid. Läbipaistvus võib olla ka ühe pärgamendilehe ulatuses erinev. Läbipaistvus sõltub pärgamendi valmistamisest. Regiooniti kasutati erinevaid naha õhendamise viise. Kui maha lihviti rohkem naha derma alumist poolt, jättes alles osa derma pealmist kihti, milles on kollageenikiud peenemad, saadi lõpptulemusena suurema tugevuse ja läbipaistvusega pärgament. Selline tehnoloogia oli rohkem levinud Lõuna-Euroopa regioonides. Juhul, kui lihviti rohkem maha derma pealmist kihti ja jäeti alles alusnahapoolne pehmem, jämedama kiulise struktuuriga ala, saadi pehme sametise pinnaga pärgament, mille läbipaistvus oli väiksem. Selline töötlemisviis oli iseloomulik Põhja-Euroopale. Samas võib pärgamendi läbipaistvus tekkida pärgamendi degradeerumisel toimunud keemiliste muutuste tulemusena. Lohaka töötlemise või erinevate kahjustuste tulemusena võib ühes pärgamentlehes olla nii läbipaistvaid kui läbipaistmatuid alasid.
Sellel veebilehel kasutatakse küpsiseid. Veebilehe kasutamist jätkates nõustute küpsiste kasutamisega.
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