I can't say with certainty which is more appropriate for your context, but "borde picoteado", OR "con borde de barbas" appear to be the more commonly used.

What is a deckle in paper making?
Image result for Deckle edge paper printing
A deckle is a removable wooden frame or "fence" used in manual papermaking. It can also mean deckle edge paper, which is a type of industrially produced paper with rough cut, distressed edges used in the book trade.

https://en.wikipedia.org/wiki/Deckle
A deckle is a removable wooden frame or "fence" used in manual papermaking. It can also mean deckle edge paper, which is a type of industrially produced paper with rough cut, distressed edges used in the book trade.

Deckle edge
Paper with a feathered edge is described as having a deckle edge, in contrast to a cut edge. Machine-made paper may artificially have its edges produced to resemble a deckle edge.


https://www.collinsdictionary.com/es/diccionario/ingles/deck...
deckle edge
1. the rough edge of handmade paper, caused by pulp seeping between the mould and the deckle: often left as ornamentation in fine books and writing papers
2. a trimmed edge imitating this

https://www.wordreference.com/es/translation.asp?tranword=de...
https://spanish_english.en-academic.com/176475/borde_picotea...

https://www.wordmagicsoft.com/diccionario/en-es/deckle-edged...
Traducir "deckle-edged" a Español: de borde picoteado, con borde de barbas
Definir significado de "deckle-edged": Having a rough edge; used of handmade paper or paper resembling handmade.


https://www.paisdelossobres.es/sobres-comerciales/sobres-par...
Cause una gran impresión con esta colección única de sobres y tarjetas confeccionados con papel artesanal​. Lo más llamativo es el borde picoteado que otorga a estos sobres y tarjetas un aspecto único y nostálgico. La combinación de sobre y tarjeta a juego causará una muy buena impresión a cualquier destinatario.

https://technical_es_en.en-academic.com/44850/con_borde_de_b...

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Note added at 6 days (2021-11-09 15:30:37 GMT) Post-grading
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Thank you.