With the advent of digital technology, authorial philology faces new challenges. The "intangible papers", made of bytes rather than paper, are the result of a radical shift in the way literature is written and experienced. And they compel archivists and philologists to rethink their methods and practices. The proceedings of the international conference The Intangible Papers. Authorial Philology and Born-Digital Texts (Pavia, 11-13 December 2023) seek to illustrate this ongoing transformation. Experts and scholars from universities and research centres share their insights and experiences on the acquisition, preservation, and enhancement of born-digital materials. With the awareness that only collaboration between archival science, computer science, and philology can ensure the longevity and accessibility of a cultural legacy essential to the future of our collective memory.