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bflatasticandClaude Opus 5.5
a18e671817
A PDF-compatible .ai paints the editor's page (an opaque white rectangle the size of the page) before its first optional-content layer and outside every layer. It came in as art: an extra "Page 1" layer with a page-sized white path behind the artwork, which hid white art and gave SVG/PNG/PDF exports an opaque background. For pages with the editor's private data (the way the importer already tells a .ai from a PDF), the first art outside every layer, painted before any layer, is dropped when it is a plain fill-only rectangle in an opaque, non-spot white, with normal blending, equal to the crop box (0.5 pt tolerance). Plain PDFs keep such a rectangle as art (as the reference app does when opening a PDF), and so does anything else: grey, smaller or larger rectangles, strokes, translucency, white inks, fills over the layers. The white-cover test the soft-mask reader used is now a shared helper. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>