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Copying selected page text now also puts an HTML fragment on the system clipboard, so a paste into a word processor or mail client keeps paragraphs, bold, italic, size, colour and font family. The plain text is unchanged and stays on the clipboard as the alternative. - export: clip.rs, the clipboard model (ClipText of paragraphs of styled spans), its builder with caps (20 000 spans, 2 MiB of text, 16 MiB of HTML), font_family (subset tag and style suffixes off, camel case spaced) and clip_html. Family names are reduced to letters, digits, space, '-', '_' and '.', so a font name cannot leave the CSS string; text goes through esc, which drops control characters. - engine: Document::rich_copy(page, text, glyphs). Glyphs (view space) take the style of the reading block their centre lies in; blocks are style-homogeneous. A line wrap inside a block is a space (none after a hyphen), a change of block a new paragraph. Refused when the document does not allow copying. compare.rs's display unit and weight/slant inference are shared, not duplicated. - automation: text_extract takes format "text" (default) or "html"; html adds each page's html and styles_incomplete, for the whole page or only what rect takes. Other values are InvalidArgs. - ui-egui: Copy of a run or column selection writes HTML plus the plain text in one arboard set (desktop only); the web build and Select All of the whole document stay plain text. last_copied_html records what was produced, for tests. - parity: view.copy-with-layout is partial; notes list what is missing (RTF, underline/strike-through, tables, Select All, web, glyphs outside reading blocks). Formatting inference and the HTML serialiser are adapted from pdfcer (MIT, same author) at 540b00ef1a405d1baa67c92f3858535037c7cde8. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SqmHYx8FiWM5PcsoiErgp9