Merge pull request #7226 from dotCooCoo/fix/legacy-ai-type-kerning

PDF/.ai import: legacy type keeps manual kerning, discretionary hyphens and language

docs/file-format-parity.md

@@ -196,6 +196,11 @@ private editing data. VectorCraft:
   as that art, with one note that counts them. Type stays live without a comparison when the saved art paints
   nothing or draws type of its own, in frames of threaded type, when a text variable binds it, and when its text
   object doesn't come in as one text object.
+  Legacy `.ai` type keeps its manual kerning pairs (`Tk`, `TK`: the kerning after the character before the
+  pair, or at a line's start the space before its first character), its discretionary hyphens (`T+`, `T-`) as
+  soft hyphens and its hyphenation language (`XL`); a line breaking value (`TG`) and Japanese layout rules
+  (`Xu`, `Tu`) are not kept, with a warning. Legacy `.ai` saves write manual kerning as `Tk` and soft hyphens
+  as `T+`.
   Legacy `.ai` type keeps its paragraphs' letter and word spacing (`TC`, `TW`), hanging punctuation (`Tq`) and
   hyphenation (`Th`); its tab definitions (`Xb` … `XB`) set its paragraphs' tab stops. Paragraphs in a row with
   the same attributes share one copy of them while the text object is read, and those copies hold at most

docs/target-app-parity.md

@@ -250,9 +250,9 @@ dominate; 3D, graphs and automation are specialist). They sum to 105. Feature de
 | Image Trace, graphs, image tools | 3 | 75% | graph Column designs, Image Trace Create Strokes depth (Create Object Mosaic is done; junction-returning piece survival has source-generated regressions in `image-trace-quality.md`; large images trace with a warning; Auto Color keeps rare distinct colours) | 5–8 | estimated (raised from 72%); quick presets reveal adjustment controls, Properties reopens them |
 | Layers, artboards, document setup | 5 | 78% | Selected-artboard deletion is consistent across panel actions (all-selected retains artboard 1); history prunes removed indices while preserving valid multiselection; remaining:  30.0's artboard locking and colours and managing artboards from the canvas, Layers row menu commands beyond Collect for Export and menus on guide and blend spine rows (click-to-fit objects is done, #1227) | 5–8 | estimated (lowered from 82%: target moved); Artboard deletion keys keep artwork and the first of an all-selected set; Artboard Options' Show Center Mark and Show Cross Hairs draw on the canvas only (exports and print leave them out), regression-tested; Artboard Options' Show Video Safe Areas and Video Ruler Pixel Aspect Ratio (per artboard, native format) are done ([video display options](#evidence-what-ships-today-by-area)), score unchanged |
 | View & navigation | 3 | 70% | multiple windows and the rest of Arrange (Cascade, Float in Window, Float All in Windows) | 9–14 | estimated; Window › Arrange › Tile and Consolidate All Windows done (score/hours unchanged); document-tab artwork hover/copy and lossless transfer tested (2026-10-22; score/hours unchanged); cached canvas reprojection preserves scale during resize, rotation and DPI changes (regression and contributor original-file evidence below; scores/hours unchanged); cached canvas dimensions match the renderer limit before cache-key creation, view construction and worker submission (regression evidence below) |
-| File formats | 6 | 75% | `.ai` files open with a flattened or wrong layer structure in real cases (#951), no writing of Illustrator's editing data (#868), FreeHand/CorelDRAW/DWG/HEIC import, 3D export; see [file-format-parity.md](file-format-parity.md); EPS legacy mesh/opacity-mask and raster comparison follow-up verified  PDF marked-text batching covered by M4 evidence (#6309); cross-line/style ActualText layout (#6165) and styled-cluster limits remain.| 10–20 | estimated (lowered from 85%: open issues); DXF control-point SPLINE import closure regression-tested (#1299 follow-up after #1320); DXF export's Include Placed Images and Include Fill Hatches options, off in CNC / CAM (`images_and_hatches_are_left_out_independently_and_the_cnc_preset_leaves_out_both`; score, gaps and hours unchanged); PDF writer metadata, reader streaming and immutable backend checks in `crates/pdf/src/tests.rs`, `crates/pdf/src/tests/reader_streaming.rs` and `xtask/src/pdf_deps.rs`; PDF Place and clipboard paste retain live text (synthetic regressions); EPS ordinary Save retains the page frame and editable document (2026-10-26); `.ai`/EPS editing data checked against a user's files (2026-10-30): case setting (`ate::tests`, `tests_native::type_from_the_text_document_keeps_its_case_setting`), placed-file placements (`tests_native::a_small_placed_file_goes_where_it_draws_closer_to_the_page`), pages cropped to the art (`tests_native::type_on_the_copies_of_a_page_cropped_to_the_art_is_read_once`), mesh corner weights and state (`ai::mesh::tests::corners_with_handle_weights_of_zero_are_read`, `ai::tests::a_gradient_mesh_takes_the_transparency_written_after_it`), type on a path spacing (`tests_native::type_round_a_circle_is_spaced_as_the_file_lays_it_out`; the distance from the path under Align to Path is measured from the top of each character's em box, half the height of the top of its H or the bottom of its font's bounding box (`tests_native::aligned_type_lies_as_far_from_its_path_as_the_file_lays_it_out`), and the fit under Gravity does not reproduce the file's layout), blend state (`ai::tests::a_blends_transparency_follows_its_record`); scores and estimates unchanged. PDF ActualText preserved in editable import (#6165; bounded synthetic coverage below); score/hours unchanged. |
-| File formats | 6 | 75% | `.ai` files open with a flattened or wrong layer structure in real cases (#951), a saved `.ai`'s editing copy without live effects on objects other than paths, compound paths and groups that qualify (at most a fill and a stroke, a non-zero fill rule when filled, no large canvas) and whose appearance and effects the art-style writer supports, and with live objects as their art (#868), FreeHand/CorelDRAW/DWG/HEIC import, textures, map art and shading in 3D export; see [file-format-parity.md](file-format-parity.md); EPS legacy mesh/opacity-mask and raster comparison follow-up verified  PDF marked-text batching covered by M4 evidence (#6309); cross-line/style ActualText layout (#6165) and styled-cluster limits remain.| 10–20 | estimated (lowered from 85%: open issues); DXF control-point SPLINE import closure regression-tested (#1299 follow-up after #1320); PDF writer metadata, reader streaming and immutable backend checks in `crates/pdf/src/tests.rs`, `crates/pdf/src/tests/reader_streaming.rs` and `xtask/src/pdf_deps.rs`; PDF Place and clipboard paste retain live text (synthetic regressions); EPS ordinary Save retains the page frame and editable document (2026-10-26); `.ai`/EPS editing data checked against a user's files (2026-10-30): case setting (`ate::tests`, `tests_native::type_from_the_text_document_keeps_its_case_setting`), placed-file placements (`tests_native::a_small_placed_file_goes_where_it_draws_closer_to_the_page`), pages cropped to the art (`tests_native::type_on_the_copies_of_a_page_cropped_to_the_art_is_read_once`), mesh corner weights and state (`ai::mesh::tests::corners_with_handle_weights_of_zero_are_read`, `ai::tests::a_gradient_mesh_takes_the_transparency_written_after_it`), type on a path spacing (`tests_native::type_round_a_circle_is_spaced_as_the_file_lays_it_out`), blend state (`ai::tests::a_blends_transparency_follows_its_record`); scores and estimates unchanged. PDF ActualText preserved in editable import (#6165; bounded synthetic coverage below); score/hours unchanged. |
-| File formats | 6 | 75% | `.ai` files open with a flattened or wrong layer structure in real cases (#951), a saved `.ai`'s editing copy without live effects on objects other than paths, compound paths and groups that qualify (at most a fill and a stroke, a non-zero fill rule when filled, no large canvas) and whose appearance and effects the art-style writer supports, and with live objects as their art (#868), FreeHand/CorelDRAW/DWG/HEIC import, 3D export; see [file-format-parity.md](file-format-parity.md); EPS legacy mesh/opacity-mask and raster comparison follow-up verified  PDF marked-text batching covered by M4 evidence (#6309); cross-line/style ActualText layout (#6165) and styled-cluster limits remain.| 10–20 | estimated (lowered from 85%: open issues); DXF control-point SPLINE import closure regression-tested (#1299 follow-up after #1320); PDF writer metadata, reader streaming and immutable backend checks in `crates/pdf/src/tests.rs`, `crates/pdf/src/tests/reader_streaming.rs` and `xtask/src/pdf_deps.rs`; PDF Place and clipboard paste retain live text (synthetic regressions); SVG CSS classes survive export and repeated import in all four styling modes (#2480); current-main integration retains event attributes and scripts; EPS ordinary Save retains the page frame and editable document (2026-10-26); `.ai`/EPS editing data checked against a user's files (2026-10-30): case setting (`ate::tests`, `tests_native::type_from_the_text_document_keeps_its_case_setting`), placed-file placements (`tests_native::a_small_placed_file_goes_where_it_draws_closer_to_the_page`), pages cropped to the art (`tests_native::type_on_the_copies_of_a_page_cropped_to_the_art_is_read_once`), mesh corner weights and state (`ai::mesh::tests::corners_with_handle_weights_of_zero_are_read`, `ai::tests::a_gradient_mesh_takes_the_transparency_written_after_it`), type on a path spacing (`tests_native::type_round_a_circle_is_spaced_as_the_file_lays_it_out`), blend state (`ai::tests::a_blends_transparency_follows_its_record`); scores and estimates unchanged. PDF ActualText preserved in editable import (#6165; bounded synthetic coverage below); score/hours unchanged.  Save refusal continuation (#6146): `READ_ONLY_LOCATION`, Save As on ordinary UI Save only; regression execution pending; score/hours unchanged. |
+| File formats | 6 | 75% | `.ai` files open with a flattened or wrong layer structure in real cases (#951), no writing of Illustrator's editing data (#868), FreeHand/CorelDRAW/DWG/HEIC import, 3D export; see [file-format-parity.md](file-format-parity.md); EPS legacy mesh/opacity-mask and raster comparison follow-up verified  PDF marked-text batching covered by M4 evidence (#6309); cross-line/style ActualText layout (#6165) and styled-cluster limits remain.| 10–20 | estimated (lowered from 85%: open issues); DXF control-point SPLINE import closure regression-tested (#1299 follow-up after #1320); DXF export's Include Placed Images and Include Fill Hatches options, off in CNC / CAM (`images_and_hatches_are_left_out_independently_and_the_cnc_preset_leaves_out_both`; score, gaps and hours unchanged); PDF writer metadata, reader streaming and immutable backend checks in `crates/pdf/src/tests.rs`, `crates/pdf/src/tests/reader_streaming.rs` and `xtask/src/pdf_deps.rs`; PDF Place and clipboard paste retain live text (synthetic regressions); EPS ordinary Save retains the page frame and editable document (2026-10-26); `.ai`/EPS editing data checked against a user's files (2026-10-30): case setting (`ate::tests`, `tests_native::type_from_the_text_document_keeps_its_case_setting`), placed-file placements (`tests_native::a_small_placed_file_goes_where_it_draws_closer_to_the_page`), pages cropped to the art (`tests_native::type_on_the_copies_of_a_page_cropped_to_the_art_is_read_once`), mesh corner weights and state (`ai::mesh::tests::corners_with_handle_weights_of_zero_are_read`, `ai::tests::a_gradient_mesh_takes_the_transparency_written_after_it`), type on a path spacing (`tests_native::type_round_a_circle_is_spaced_as_the_file_lays_it_out`; the distance from the path under Align to Path is measured from the top of each character's em box, half the height of the top of its H or the bottom of its font's bounding box (`tests_native::aligned_type_lies_as_far_from_its_path_as_the_file_lays_it_out`), and the fit under Gravity does not reproduce the file's layout), blend state (`ai::tests::a_blends_transparency_follows_its_record`); scores and estimates unchanged. PDF ActualText preserved in editable import (#6165; bounded synthetic coverage below); score/hours unchanged. Legacy `.ai` type keeps its manual kerning pairs (`Tk`, `TK`), discretionary hyphens (`T+`, `T-`) and hyphenation language (`XL`) when it opens, and legacy `.ai` saves write manual kerning as `Tk` and soft hyphens as `T+` (`import::ai::tests::legacy_manual_pair_kerning_is_kept`, `legacy_ai::tests::manual_kerning_and_soft_hyphens_are_written_and_read_back`); score, gaps and hours unchanged. |
+| File formats | 6 | 75% | `.ai` files open with a flattened or wrong layer structure in real cases (#951), a saved `.ai`'s editing copy without live effects on objects other than paths, compound paths and groups that qualify (at most a fill and a stroke, a non-zero fill rule when filled, no large canvas) and whose appearance and effects the art-style writer supports, and with live objects as their art (#868), FreeHand/CorelDRAW/DWG/HEIC import, textures, map art and shading in 3D export; see [file-format-parity.md](file-format-parity.md); EPS legacy mesh/opacity-mask and raster comparison follow-up verified  PDF marked-text batching covered by M4 evidence (#6309); cross-line/style ActualText layout (#6165) and styled-cluster limits remain.| 10–20 | estimated (lowered from 85%: open issues); DXF control-point SPLINE import closure regression-tested (#1299 follow-up after #1320); PDF writer metadata, reader streaming and immutable backend checks in `crates/pdf/src/tests.rs`, `crates/pdf/src/tests/reader_streaming.rs` and `xtask/src/pdf_deps.rs`; PDF Place and clipboard paste retain live text (synthetic regressions); EPS ordinary Save retains the page frame and editable document (2026-10-26); `.ai`/EPS editing data checked against a user's files (2026-10-30): case setting (`ate::tests`, `tests_native::type_from_the_text_document_keeps_its_case_setting`), placed-file placements (`tests_native::a_small_placed_file_goes_where_it_draws_closer_to_the_page`), pages cropped to the art (`tests_native::type_on_the_copies_of_a_page_cropped_to_the_art_is_read_once`), mesh corner weights and state (`ai::mesh::tests::corners_with_handle_weights_of_zero_are_read`, `ai::tests::a_gradient_mesh_takes_the_transparency_written_after_it`), type on a path spacing (`tests_native::type_round_a_circle_is_spaced_as_the_file_lays_it_out`), blend state (`ai::tests::a_blends_transparency_follows_its_record`); scores and estimates unchanged. PDF ActualText preserved in editable import (#6165; bounded synthetic coverage below); score/hours unchanged. Legacy `.ai` type keeps its manual kerning pairs (`Tk`, `TK`), discretionary hyphens (`T+`, `T-`) and hyphenation language (`XL`) when it opens, and legacy `.ai` saves write manual kerning as `Tk` and soft hyphens as `T+` (`import::ai::tests::legacy_manual_pair_kerning_is_kept`, `legacy_ai::tests::manual_kerning_and_soft_hyphens_are_written_and_read_back`); score, gaps and hours unchanged. |
+| File formats | 6 | 75% | `.ai` files open with a flattened or wrong layer structure in real cases (#951), a saved `.ai`'s editing copy without live effects on objects other than paths, compound paths and groups that qualify (at most a fill and a stroke, a non-zero fill rule when filled, no large canvas) and whose appearance and effects the art-style writer supports, and with live objects as their art (#868), FreeHand/CorelDRAW/DWG/HEIC import, 3D export; see [file-format-parity.md](file-format-parity.md); EPS legacy mesh/opacity-mask and raster comparison follow-up verified  PDF marked-text batching covered by M4 evidence (#6309); cross-line/style ActualText layout (#6165) and styled-cluster limits remain.| 10–20 | estimated (lowered from 85%: open issues); DXF control-point SPLINE import closure regression-tested (#1299 follow-up after #1320); PDF writer metadata, reader streaming and immutable backend checks in `crates/pdf/src/tests.rs`, `crates/pdf/src/tests/reader_streaming.rs` and `xtask/src/pdf_deps.rs`; PDF Place and clipboard paste retain live text (synthetic regressions); SVG CSS classes survive export and repeated import in all four styling modes (#2480); current-main integration retains event attributes and scripts; EPS ordinary Save retains the page frame and editable document (2026-10-26); `.ai`/EPS editing data checked against a user's files (2026-10-30): case setting (`ate::tests`, `tests_native::type_from_the_text_document_keeps_its_case_setting`), placed-file placements (`tests_native::a_small_placed_file_goes_where_it_draws_closer_to_the_page`), pages cropped to the art (`tests_native::type_on_the_copies_of_a_page_cropped_to_the_art_is_read_once`), mesh corner weights and state (`ai::mesh::tests::corners_with_handle_weights_of_zero_are_read`, `ai::tests::a_gradient_mesh_takes_the_transparency_written_after_it`), type on a path spacing (`tests_native::type_round_a_circle_is_spaced_as_the_file_lays_it_out`), blend state (`ai::tests::a_blends_transparency_follows_its_record`); scores and estimates unchanged. PDF ActualText preserved in editable import (#6165; bounded synthetic coverage below); score/hours unchanged.  Save refusal continuation (#6146): `READ_ONLY_LOCATION`, Save As on ordinary UI Save only; regression execution pending; score/hours unchanged. Legacy `.ai` type keeps its manual kerning pairs (`Tk`, `TK`), discretionary hyphens (`T+`, `T-`) and hyphenation language (`XL`) when it opens, and legacy `.ai` saves write manual kerning as `Tk` and soft hyphens as `T+` (`import::ai::tests::legacy_manual_pair_kerning_is_kept`, `legacy_ai::tests::manual_kerning_and_soft_hyphens_are_written_and_read_back`); score, gaps and hours unchanged. |
 | View & navigation | 3 | 70% | multiple windows and the rest of Arrange (Cascade, Float in Window, Float All in Windows) | 9–14 | estimated; Window › Arrange › Tile and Consolidate All Windows done (score/hours unchanged); document-tab artwork hover/copy and lossless transfer tested (2026-10-22; score/hours unchanged); cached canvas reprojection preserves scale during resize, rotation and DPI changes (regression and contributor original-file evidence below; scores/hours unchanged) |
 | View & navigation | 3 | 70% | multiple windows and the rest of Arrange (Cascade, Float in Window, Float All in Windows) | 9–14 | estimated; Window › Arrange › Tile and Consolidate All Windows done (score/hours unchanged) |
 | Guides, grids, smart guides, snapping, rulers | 3 | 80% | "intersect" smart guides for a moved selection's anchors (drawn points and dragged anchors snap to intersections, #1658) | 4–7 | estimated (lowered from 85%: target moved); Control bar snapping quick access includes Snap to Glyph and Alignment Guides (#6164); new ruler-guide Alt orientation implemented; global/artboard ruler modes (`view.globalRulers`) and video rulers (View › Rulers › Show Video Rulers, #2849) done; status-bar X/Y uses the active ruler origin and General units; score unchanged |
@@ -515,7 +515,7 @@ about 1–1.5 agent-hours each, so the other rows (estimated on the older scale)
 | Layers, artboards, document setup | 5 | 82% | Layers panel: a confirmation before deleting layers that hold art, row menu commands beyond Collect for Export (now on every layer, sublayer, group and object row), menus on guide and blend spine rows, the Layer Options dialog for several rows with mixed values, Paste Remembers Layers for sublayers; artboard preset polish (artboard escape routing and document setup modal handoff done; Move Artwork for artboard X/Y edits, Rearrange All Artboards, Document Setup, New Document and the rest of the Layers panel are done) | 4–7 |
 | View & navigation | 3 | 70% | New View/Edit Views, multiple windows/arrange, Snap to Pixel/Glyph (print tiling is done) | 9–14 |
 | Guides, grids, smart guides, snapping, rulers | 3 | 85% | global/video rulers, Spacing Guides' distance readouts and spacing for resized or drawn art, Alt swapping a ruler guide's orientation, ruler guides selected together with art (marquee, Shift-click), ruler guides as Layers rows with their own lock and hide (#451: Lock Guides locks them all; Make Guides paths are Layers rows already) (dragging existing guides is done, #414; new guides snapping to side midpoints and artboards, and artboard guides, #451; the drawing tools snapping, with Construction Guides, #506; Spacing Guides for moves, #394; moves snapping to the grid, #740; ruler guides pulling drawn points with Smart Guides on, and "center" and "anchor" labels while hovering with the Selection tool, #812; distance and angle labels while drawing, #2983) | 2–4; status-bar X/Y uses the active ruler origin and General units |
-| File formats | 6 | 85% | PDF import: glyphs inside a marked-content span with an empty `ActualText` come in as outlines in their fill and stroke, adding no text (#6971; scores and estimates unchanged); Explicit editing-data oversized single-artboard import fixed (#6865); scores and estimates unchanged. Affinity export, and the rest of Affinity import (adjustments, blur and bevel effects, brushes, live symbol instances, text threading), DWG (no open spec: DXF instead), PSD placement as layers (Photoshop Import Options; the merged image is done), EPS checked against more real files users send (Inkscape files open as vectors; other generators' constructs are tested with programs written from the PostScript Language Reference only; CID-keyed CJK type and `CCITTFaxDecode` images not read), legacy `.ai` files saved without the prolog that defines their operators (their own operator set isn't read yet), the rest of Illustrator's editing data (appearances and live effects, symbols, pattern fills, brushes, placed files: #637), the remaining fidelity polish; EPS, DXF, EMF/WMF, TIFF, BMP, Targa, PSD export, SVGZ, PDF security, PDF/X, PDF layers, presets and Affinity import are done | 6–10 (existing scope; Affinity export unestimated) |
+| File formats | 6 | 85% | PDF import: glyphs inside a marked-content span with an empty `ActualText` come in as outlines in their fill and stroke, adding no text (#6971; scores and estimates unchanged); Explicit editing-data oversized single-artboard import fixed (#6865); scores and estimates unchanged. Legacy `.ai` files that name but omit their prolog open with their layers, or with their art on one layer when the format has no layers; graph data and settings in these files still come in only as drawn art. Affinity export, and the rest of Affinity import (adjustments, blur and bevel effects, brushes, live symbol instances, text threading), DWG (no open spec: DXF instead), PSD placement as layers (Photoshop Import Options; the merged image is done), EPS checked against more real files users send (Inkscape files open as vectors; other generators' constructs are tested with programs written from the PostScript Language Reference only; CID-keyed CJK type and `CCITTFaxDecode` images not read), the rest of Illustrator's editing data (appearances and live effects, symbols, pattern fills, brushes, placed files: #637), the remaining fidelity polish; EPS, DXF, EMF/WMF, TIFF, BMP, Targa, PSD export, SVGZ, PDF security, PDF/X, PDF layers, presets and Affinity import are done | 6–10 (existing scope; Affinity export unestimated) |
 | Export for Screens, Asset Export, slices, Save for Web | 3 | 85% | polish only (all four are done) | 2–4 |
 | Print, colour management, separations, flattener | 3 | 80% | print preview fidelity (flattener presets in PDF and print, overprint in PDF and composite print, Print dialog, presets, PostScript, marks, separations, Print Tiling, print overprint/flattener/bitmap options and printer profile are done, as are the Japanese papers in its Media list: JIS B4/B5/B6, はがき, 往復はがき, 封筒 長形3号/長形4号/角形2号/角形3号 and 四六判, beside the ISO B4/B5 that settings saved before them keep) | 1–2 |
 | Automation | 3 | 65% | scripting surface, batch (MCP drops malformed app replies without replay; Variables: text/visibility variables bound to objects, an object may carry several, dataset rows applied in one undo step, panel and Window › Variables with dialogs; image/graph kinds and dataset import/export open) | 6–10 |
@@ -1634,6 +1634,7 @@ Moved from the ROADMAP's "Shipped so far" on 2026-10-10. Update it when a featur
     To find those characters, SVG export lays a type object out a second time only when the second layout can differ from the first: point type with Line-end Punctuation Half Width and no Japanese punctuation or letters, the setting new type gets, is laid out once. Exporting 5,000 such objects takes a median of 109.4 ms instead of 171.5 ms on Windows 11, with the same SVG (`crates/svg/src/export/text/tests.rs`).
     SVG export (live text), legacy `.ai` saves (text objects), DXF export (`TEXT` entities) and the CSS Properties panel write area type that Shrink Text to Fit scales down at the size it draws at, and scale its tracking, kerning, leading and baseline shifts the same way where the format holds them.
     Legacy `.ai` saves (version 7) write type with rotated characters (Character Rotation, Touch Type turns) as its outlines, with a warning that it is no longer editable text (unless `outlineText` already asks for every type object as outlines): a version 7 text object has no character rotation ([Adobe Illustrator File Format Specification 7.0](https://www.nationalarchives.gov.uk/PRONOM/fmt/423), §15), and the outlines keep each character's rotation, baseline shift and scale (`legacy_ai::tests::type_with_rotated_characters_is_outlines_that_keep_the_rotation`).
+    Legacy `.ai` type keeps its manual kerning pairs (`Tk`, `TK`), its discretionary hyphens (`T+`, `T-`) as soft hyphens and its hyphenation language (`XL`) when it opens, and legacy `.ai` saves write manual kerning as `Tk` and soft hyphens as `T+` ([file format specification, version 7](https://web.archive.org/web/20050126105313/https://partners.adobe.com/public/developer/en/illustrator/sdk/AI7FileFormat.pdf), §15.4.6.1, §15.4.10.1 and §22.6). A file whose type sets a line breaking value (`TG`) or Japanese layout rules (`Xu`, `Tu`), which VectorCraft doesn't keep, opens with a warning for each (`import::ai::tests::legacy_manual_pair_kerning_is_kept`, `legacy_line_breaking_and_japanese_layout_rules_are_warned_once`, `legacy_ai::tests::manual_kerning_and_soft_hyphens_are_written_and_read_back`).
     A PDF saved with Illustrator's editing data opens through it as a PDF-compatible `.ai` does, with its layers and groups and with art reaching past its page unclipped; such a PDF holds the data in `AIPDFPrivateData` streams (part of #868). A shape a PDF or `.ai` paints with a gradient (a clip path round a shading) opens as one path filled with the gradient, not a clip group round a rectangle, so Shape Builder, Live Paint and Pathfinder work on its outline (#1304).
     In a `.ai` opened from its editing data, a text object on a layer that shows and doesn't print stays on that layer, made from the file's text document, even where the page doesn't draw it (`crates/eps/src/import/tests_native.rs`). Such a `.ai` opens without the PDF part's warnings that text was kept as outlines when no outlined glyphs come in, and a warning counts the text objects that hold the page's type next to glyphs the page has only as outlines, which don't come in (`crates/engine/src/cmd/fileio/tests_aiimport.rs`). Where the art of a `.ai` or EPS opened from its editing data differs a little from the file's page, the warning gives the share of the page that differs away from type. When that share is 0.2% or less, the warning names the type and gives the share of the page that differs where the type is; when all the type is made from the text document, the type's share has a warning of its own beside the art's (`crates/eps/src/import/tests_native.rs`).
     In a `.ai` or EPS opened from its editing data, where a layer's or group's drawn look (an effect can be attached to a group or a layer, [Vector and raster effects](https://helpx.adobe.com/illustrator/desktop/special-effects-styles/apply-filter-effects/vector-and-raster-effects.html)) draws a copy of art with type, the import puts the page's type that lies over the copy's other art into the copy's group, instead of giving it to other text objects by painting order. Type beside the copy's art, and every copy's type in a file past the import's text-object limits, still goes by painting order. Without a page, such a copy has no type, and no warning counts it as left out. How the page's type is matched with a copy is VectorCraft's own rule (`crates/eps/src/import/tests_native.rs`).