The sheet is re-rendered off-screen with the same shaders at the chosen resolution — tears, fibre, halftone and misregistration are recomputed, not upscaled. The border, bleed and crop marks are composited around it. PDF embeds the render at exact inches so a print shop gets the right trim size; 600 dpi on a tabloid is 6600×10200 px and needs a capable GPU.
Pick a sheet (a real print size), a stock and a press. Drag fragments from the drawer: complete story pages, panels cut along their own borders, word balloons, coupons, ad pages, covers and knockouts — 1,000+ pieces cut from public-domain Golden Age comics. Each one lands torn; in the inspector you choose how it was cut (torn, ripped, pinked, clean, frayed), how violently, whether it prints black-only, its opacity and flip.
Thirteen edge styles — torn, deckle, ripped rough, burnt, a strip torn from one edge, a ripped corner, a bite out of one side, pinked, scalloped, perforated, clean, frayed silhouette, uncut — each with a violence slider and a re-tear button. Scissors: select any fragment, click Cut a shape, click points around the part you want to keep and press Enter; Bite a chunk removes what you outline instead. Cuts stack, and Undo cuts restores the whole piece.
Everything on the sheet is re-printed live by the same GLSL press as the Seed engine. Export renders the whole sheet again at print resolution.
Sources: Digital Comic Museum scans via the Internet Archive, all US public domain. Studio by Marc Watkins with Claude (Fable 5.1) in Claude Code · CC BY 4.0. Your collages are yours.