0.10.4: four layout fixes (table headers, view-around-table, svg viewBox, marginTop auto)

Issue 4: <Table> with <Row header> starting low enough on a page that
the header didn't fit before the page break inflated output to 3-5x
the right page count, with header cells "doubling and sliding one
column right" per page. layout_table now pre-checks header fit and
page-breaks before laying out if needed; layout_table_row drops
cell-overflow trial pages for header rows.

Issue 3: A <View> wrapping a <Table> auto-grew to roughly the page
height. measure_node_height had no arms for Table / TableRow so they
fell into the generic column-summing branch (a 3-col row of 16pt cells
measured to 48pt). Now delegates to the same resolve_column_widths +
measure_table_row_height helpers layout_table uses.

Issue 2: <Svg viewBox="..."> rendered content at raw viewBox
coordinates and overflowed the display box. PDF emission now applies
the SVG viewport algorithm with xMidYMid meet defaults (uniform
min(sx, sy) scale + centering).

Issue 1: marginTop / marginBottom: 'auto' on a child in a column-flex
parent with fixed height now distributes slack to push the child to
the bottom / center / etc., matching CSS spec and mirroring the
existing flex-row cross-axis logic.

Versions bumped to 0.10.4 across engine, server, rasterizer,
python-sdk, and all twelve npm packages (cross-package pins updated,
lockfiles regenerated, WASM rebuilt for all targets).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: danmolitor

engine/CHANGELOG.md

@@ -1,5 +1,16 @@
 # Changelog
 
+## [0.10.4] - 2026-06-05
+
+### Fixed
+- `<Table>` with `<Row header>` no longer inflates page count 3–5× when starting low enough on a page that the header doesn't fit before the page break. The header loop had no pre-fit check (unlike the body loop), so when forced to lay out where it didn't fit, each header cell's inner View/Text triggered a widow/orphan page-break that `layout_table_row` then captured as a "trial" snapshot page. Each successive cell's snapshot accumulated one more cell of the in-progress row — the reporter's "doubled header sliding one column right per page" symptom. `layout_table` now page-breaks before laying out headers if they don't fit; header rows additionally drop any cell-overflow trial pages instead of committing them
+- A `<View>` wrapping a `<Table>` no longer inflates to roughly the page height. `measure_node_height` had no arms for `NodeKind::Table` or `TableRow`, so they fell through to the generic column-summing branch — a 3-column row of 16pt cells measured to 48pt instead of 16pt, and the wrapping View inherited the inflated value. Now delegates to the same `resolve_column_widths` + `measure_table_row_height` helpers `layout_table` already uses, so measurement matches what gets rendered
+- `<Svg width={W} height={H} viewBox="x y w h">` now scales content to fit the display box. `parse_svg`'s viewBox parameters were unused and the PDF emission's `cm` transform scaled by `element.width / display_width` (always 1.0), so paths rendered at raw viewBox coordinates and overflowed. PDF emission now implements the SVG viewport algorithm with `xMidYMid meet` as the default `preserveAspectRatio` (uniform `min(sx, sy)` scale + centering)
+- `marginTop` / `marginBottom: 'auto'` on a child in a column-flex parent with fixed height now pushes the child to the bottom / centers it / etc., matching CSS flex spec. The flex-row cross-axis already had auto-margin slack handling; the column branch of `layout_children` did not. Mirrors that block, ordered before `justify-content` so auto-margins consume free space first
+
+### Internal
+- New `measure_node_height` arms for `NodeKind::Table` and `TableRow`, plus an auto-vertical-margin pass in `layout_children`'s column branch. SVG viewBox dimensions are plumbed through `DrawCommand::Svg`
+
 ## [0.10.3] - 2026-05-28
 
 ### Fixed

engine/Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "forme-pdf"
-version = "0.10.3"
+version = "0.10.4"
 edition = "2021"
 description = "A page-native PDF rendering engine. Layout INTO pages, not onto an infinite canvas."
 license = "MIT"

engine/Cargo.toml

@@ -1,5 +1,9 @@
 # Changelog
 
+## [0.10.4] - 2026-06-05
+
+_Bump `@formepdf/core` to 0.10.4 — picks up four engine layout fixes (Table repeating-header page-count, View-around-Table auto-height, SVG viewBox scaling, column-axis `marginTop: 'auto'`)._
+
 ## [0.10.3] - 2026-05-28
 
 _Bump `@formepdf/core` to 0.10.3 — picks up the engine fix for `<Text style={{ width }}>` rendering at the parent's full width in a flex row._

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@formepdf/cli",
-  "version": "0.10.3",
+  "version": "0.10.4",
   "description": "CLI for Forme PDF rendering engine — dev server with live preview and build command",
   "type": "module",
   "bin": {
@@ -14,7 +14,7 @@
     "dist"
   ],
   "dependencies": {
-    "@formepdf/renderer": "0.10.3",
+    "@formepdf/renderer": "0.10.4",
     "chokidar": "^4.0.0",
     "ws": "^8.18.0",
     "open": "^10.1.0"

packages/cli/CHANGELOG.md

@@ -1,5 +1,14 @@
 # Changelog
 
+## [0.10.4] - 2026-06-05
+
+### Fixed
+- WASM rebuilt against engine 0.10.4, picking up four layout fixes:
+  - `<Table>` with `<Row header>` no longer inflates page count 3–5× when the header doesn't fit before a page break (silent — produced "doubled and sliding column" header artifacts)
+  - A `<View>` wrapping a `<Table>` no longer auto-grows to roughly the page height — Table/TableRow now have explicit measurement arms that match what `layout_table` actually renders
+  - `<Svg viewBox="…">` content now scales to the display box via the SVG viewport algorithm (`xMidYMid meet` default) instead of rendering at raw viewBox coordinates and overflowing
+  - `marginTop: 'auto'` on a child in a column-flex parent with fixed height now pushes the child to the bottom, matching the cross-axis behavior already shipped for flex rows
+
 ## [0.10.3] - 2026-05-28
 
 ### Fixed

packages/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@formepdf/core",
-  "version": "0.10.3",
+  "version": "0.10.4",
   "description": "WASM-powered PDF rendering engine for Forme",
   "type": "module",
   "main": "./dist/index.js",
@@ -59,7 +59,7 @@
     "prepublishOnly": "npm run build && ./scripts/assert-tarball.sh"
   },
   "dependencies": {
-    "@formepdf/react": "0.10.3"
+    "@formepdf/react": "0.10.4"
   },
   "peerDependencies": {
     "react": "^18 || ^19"

packages/core/CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## [0.10.4] - 2026-06-05
+
+_Bump `@formepdf/core` to 0.10.4 — picks up four engine layout fixes (Table repeating-header page-count, View-around-Table auto-height, SVG viewBox scaling, column-axis `marginTop: 'auto'`)._
+
 ## [0.10.3] - 2026-05-28
 
 _Bump `@formepdf/core` to 0.10.3 — picks up the engine fix for `<Text style={{ width }}>` rendering at the parent's full width in a flex row._

packages/core/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@formepdf/hono",
-  "version": "0.10.3",
+  "version": "0.10.4",
   "description": "PDF middleware and responses for Hono — works on Workers, Deno, Bun, Node",
   "type": "module",
   "main": "./dist/index.js",
@@ -13,9 +13,9 @@
     "dist"
   ],
   "dependencies": {
-    "@formepdf/react": "0.10.3",
-    "@formepdf/core": "0.10.3",
-    "@formepdf/templates": "0.10.3"
+    "@formepdf/react": "0.10.4",
+    "@formepdf/core": "0.10.4",
+    "@formepdf/templates": "0.10.4"
   },
   "peerDependencies": {
     "hono": ">=4.0.0"