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KenM76andClaude Opus 5.5
4c087336aa
Before PDF 2.0, PRC in a 3D stream is an Adobe extension to PDF 1.7, so a PRC model added to a file below 2.0 now declares /Extensions /ADBE at BaseVersion 1.7, ExtensionLevel 1, keeping other extensions and a later ADBE level, and leaving an /ADBE that is not a dictionary (an array of them) alone (ISO 32000-2 §7.12). U3D and 2.0 files are unchanged. A PDF poster whose page box has no area was drawn as nothing behind a size forced to 1; it is now refused with EditError::Source. Both found by CodeRabbit. Tests a_prc_model_declares_the_adobe_extension_before_pdf_2 and a_3d_poster_page_without_area_is_refused fail with their fix reverted. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SqmHYx8FiWM5PcsoiErgp9