diff --git a/assets/webui/ofdgo.js b/assets/webui/ofdgo.js
index 3160ee8..0658067 100644
--- a/assets/webui/ofdgo.js
+++ b/assets/webui/ofdgo.js
@@ -3968,7 +3968,7 @@ async function editCanvasObject(item, point = null) {
 		if (!isForegroundDocument(tab) || openSeq !== state.openSeq) return;
 		let rich = null;
 		if (item.richText) rich = await loadRichText(item, face, tab, data.bytes);
-		else if (!item.scoped && layoutKnown) {
+		else if (layoutKnown) {
 			try { rich = await loadRichText(item, face, tab, data.bytes); } catch {}
 		}
 		if (!isForegroundDocument(tab) || openSeq !== state.openSeq) return;
@@ -4284,7 +4284,6 @@ async function toggleTextTool() {
 	const font = state.textFonts[Number(fontPicker.value)];
 	state.textDefaults = { type: "TextObject", size: style.size, color: style.color, wrap: style.wrap,
 		bold: Boolean(style.bold), italic: Boolean(style.italic), underline: Boolean(style.underline), strikeout: Boolean(style.strikeout), shadow: Boolean(style.shadow), background: style.background || "",
-		wrapOverride: style === state.textDefaults ? style.wrapOverride : style.wrap,
 		align: style.align || "left", paragraphHeight: style.paragraphHeight || 0, letterSpacing: style.letterSpacing || 0,
 		leftIndent: style.leftIndent || 0, rightIndent: style.rightIndent || 0, firstLineIndent: style.firstLineIndent || 0,
 		fontChoice: font && !font.disabled ? font : state.textDefaults.fontChoice };
@@ -4312,7 +4311,7 @@ async function beginCanvasText(index, box, surface, page) {
 		await face.load();
 		if (!isForegroundDocument(tab) || openSeq !== state.openSeq || !surface.isConnected) return;
 		const node = document.createElement("div");
-		const item = { ...state.textDefaults, ...box, wrap: state.textDefaults.wrapOverride ?? box.wrap ?? state.textDefaults.wrap,
+		const item = { ...state.textDefaults, ...box, wrap: Boolean(box.wrap),
 			index, page, surface, node, text: "", draft: true, fontData: data };
 		const model = { ...richTextModel(item), autoWidth: !box.wrap };
 		const key = `temp-font-${crypto.randomUUID()}`;
@@ -4578,7 +4577,6 @@ async function changeTextAlignment() {
 
 async function changeParagraph(wrap) {
 	const item = currentTextStyle();
-	const explicitWrap = wrap !== undefined;
 	wrap ??= item.wrap;
 	if (document.body.hasAttribute("data-busy") || item.draft) return;
 	if (!el.textLineHeight.checkValidity()) {
@@ -4593,7 +4591,6 @@ async function changeParagraph(wrap) {
 	const spacing = inputMillimeters(el.textSpacing, item.letterSpacing || 0);
 	if (item === state.textDefaults) {
 		Object.assign(item, { wrap: Boolean(wrap), align: el.textAlign.value, paragraphHeight: height, letterSpacing: spacing });
-		if (explicitWrap) item.wrapOverride = Boolean(wrap);
 		updateObjectControls(canvasEditor.selected, true);
 		return;
 	}
@@ -12490,12 +12487,13 @@ function updateObjectControls(item, reset = false) {
 		el.undoButton.disabled = !state.editorInfo?.canUndo || !state.ready || state.exporting;
 		el.redoButton.disabled = !state.editorInfo?.canRedo || !state.ready || state.exporting;
 	}
-	el.textWrap.disabled = el.textLineHeight.disabled = el.textSpacing.disabled = el.textSize.disabled || Boolean(item?.items || item?.draft) || Boolean(canvasEditor.input);
+	el.textLineHeight.disabled = el.textSpacing.disabled = el.textSize.disabled || Boolean(item?.items || item?.draft) || Boolean(canvasEditor.input);
+	el.textWrap.disabled = el.textLineHeight.disabled || text === state.textDefaults;
 	const reflow = document.querySelector("#textReflow"), positioned = canvasEditor.input?.source && (item?.selectionIDs || !canEditObject(item, "layoutKnown"));
 	reflow.hidden = !positioned;
 	el.textWrap.hidden = !!positioned;
 	reflow.disabled = textDisabled || !canEditObject(item, "reflow") || !!canvasEditor.input?.reflow;
-	el.paragraphButton.disabled = el.textWrap.disabled;
+	el.paragraphButton.disabled = el.textLineHeight.disabled;
 	el.textAlign.disabled = el.textSize.disabled || Boolean(item?.items || item?.selectionIDs);
 	const layoutKnown = text === state.textDefaults || Boolean(item?.draft) || canEditObject(item, "layoutKnown");
 	const rich = canvasEditor.input?.rich;
diff --git a/assets/webui/ofdgo_edit.js b/assets/webui/ofdgo_edit.js
index d286e1c..7f219b1 100644
--- a/assets/webui/ofdgo_edit.js
+++ b/assets/webui/ofdgo_edit.js
@@ -11,6 +11,10 @@ function sourceTextScale(editing) {
 	return Math.max(Math.hypot(a, b), Math.hypot(c, d)) || 1;
 }
 
+function textFrameBox(item) {
+	return { x: 0, y: 0, width: item.paragraphWidth ?? item.textFrame.width, height: item.textFrame.height };
+}
+
 export function fontFaceStyle(data) {
 	const style = { weight: "400", style: "normal" };
 	const bytes = ArrayBuffer.isView(data) ? new DataView(data.buffer, data.byteOffset, data.byteLength) : new DataView(data);
@@ -936,8 +940,8 @@ export class CanvasEditor {
 		});
 		if (item.contour) item.contour.svg.setAttribute("viewBox", `${item.x} ${item.y} ${item.width} ${item.height}`);
 		if (item.textFrame) {
-			const { matrix: [a, b, c, d, e, f], width, height } = item.textFrame;
-			const box = item.textFrame.content || { x: 0, y: 0, width, height };
+			const [a, b, c, d, e, f] = item.textFrame.matrix;
+			const box = textFrameBox(item);
 			for (const handle of item.node.children) {
 				if (handle.dataset.corner !== "w" && handle.dataset.corner !== "e") continue;
 				const x = box.x + (handle.dataset.corner === "e" ? box.width : 0), y = box.y + box.height / 2;
@@ -1265,7 +1269,7 @@ export class CanvasEditor {
 			if (drag.item.textFrame) {
 				const frame = drag.item.textFrame, [a, b, c, d] = frame.matrix;
 				const dx = (d * (to.x - from.x) - c * (to.y - from.y)) / (a * d - b * c);
-				const box = reshapeBox({ geometry: frame.content || { x: 0, y: 0, width: frame.width, height: frame.height } }, dx, 0, drag.corner, false);
+				const box = reshapeBox({ geometry: textFrameBox(drag.item) }, dx, 0, drag.corner, false);
 				drag.box = { x: drag.item.x + box.x, width: box.width };
 				const bounds = transformedBox(box, frame.matrix);
 				Object.assign(drag.item.node.style, { left: `${bounds.x * PX_PER_MM}px`, top: `${bounds.y * PX_PER_MM}px`,
@@ -1429,7 +1433,7 @@ export class CanvasEditor {
 			this.drag = null;
 			this.viewer.releasePointerCapture(drag.pointerID);
 			const frame = drag.item.textFrame;
-			const geometry = drag.item.oriented?.box || drag.item.geometry || (frame ? { x: drag.item.x + (frame.content?.x || 0), width: frame.content?.width ?? frame.width } : drag.item);
+			const geometry = drag.item.oriented?.box || drag.item.geometry || (frame ? { x: drag.item.x, width: textFrameBox(drag.item).width } : drag.item);
 			const changed = Object.keys(drag.box).some((key) => drag.box[key] !== geometry[key]);
 			const apply = drag.item.shape || drag.item.oriented ? this.options.onReshape : canEditObject(drag.item, "stretch") ? this.options.onResize : this.options.onTextWidth;
 			Promise.resolve(changed && apply(drag.item, drag.box)).finally(() => {
@@ -1779,9 +1783,9 @@ export class CanvasEditor {
 			else paragraph.append(document.createElement("br"));
 			input.append(paragraph);
 		}
-		const left = item.leftIndent || 0;
-		const frame = { ...(item.textFrame || { width: item.width, height: item.height, matrix: [1, 0, 0, 1, item.x, item.y] }) };
-		if (item.wrap && item.paragraphWidth != null) frame.width = item.paragraphWidth;
+		const left = rich?.model.layout.leftIndent || item.leftIndent || 0;
+		const frame = { ...(rich?.frame || item.textFrame || { width: item.width, height: item.height, matrix: [1, 0, 0, 1, item.x, item.y] }) };
+		if (!rich?.frame && item.paragraphWidth != null) frame.width = item.paragraphWidth;
 		const [a, b, c, d, e, f] = frame.matrix;
 		Object.assign(input.style, {
 			left: "0px", top: "0px",
diff --git a/internal/webui/webui.go b/internal/webui/webui.go
index adf24c1..a2c3bfd 100644
--- a/internal/webui/webui.go
+++ b/internal/webui/webui.go
@@ -3401,7 +3401,7 @@ func (e *businessEngine) editorObjects(index int, text *ofdgo.PageText) ([]any,
 						inverse, _ := matrix.Invert()
 						local := inverse.TransformBox(box)
 						width := math.Max(object.TextObject.Size, local.X+local.W)
-						if layout.Wrap {
+						if layout != (ofdgo.TextLayout{}) {
 							item["paragraphWidth"] = frame.W
 						}
 						frame = ofdgo.Box{W: width, H: math.Max(object.TextObject.Size, local.Y+local.H)}
@@ -4017,7 +4017,7 @@ func (e *businessEngine) compositeObjects(args []platformValue) (any, error) {
 				inverse, _ := member.Matrix.Invert()
 				local := inverse.TransformBox(box)
 				width := math.Max(object.Size, local.X+local.W)
-				if layout.Wrap {
+				if layout != (ofdgo.TextLayout{}) {
 					frame, err := object.TextFrame()
 					if err != nil {
 						return nil, err
@@ -4969,8 +4969,12 @@ func (e *businessEngine) editorRichText(item map[string]any, object ofdgo.Graphi
 	if err != nil {
 		return
 	}
-	frame := matrix.TransformBox(contentBounds)
 	format, layout := value.Runs[0].Format, value.Layout
+	selection := contentBounds
+	if !value.AutoWidth || layout.Wrap {
+		selection = ofdgo.Box{W: width, H: height}
+	}
+	frame := matrix.TransformBox(selection)
 	var content strings.Builder
 	for _, run := range value.Runs {
 		content.WriteString(run.Text)
@@ -4987,7 +4991,7 @@ func (e *businessEngine) editorRichText(item map[string]any, object ofdgo.Graphi
 	item["letterSpacing"], item["leftIndent"], item["rightIndent"], item["firstLineIndent"] = layout.LetterSpacing, layout.LeftIndent, layout.RightIndent, layout.FirstLineIndent
 	item["paragraphWidth"], item["bounds"] = width, e.editorBox(frame)
 	item["x"], item["y"], item["width"], item["height"] = frame.X, frame.Y, frame.W, frame.H
-	item["textFrame"] = map[string]any{"width": width, "height": height, "matrix": e.editorMatrix(matrix), "content": e.editorBox(contentBounds)}
+	item["textFrame"] = map[string]any{"width": width, "height": height, "matrix": e.editorMatrix(matrix)}
 	capabilities := item["capabilities"].(map[string]any)
 	for _, key := range []string{"textContent", "rewriteText", "replaceFont", "reflow", "layoutKnown", "paint"} {
 		capabilities[key] = true
diff --git a/ofdgo_editor_rich_text.go b/ofdgo_editor_rich_text.go
index 02ec1b4..0c8db4b 100644
--- a/ofdgo_editor_rich_text.go
+++ b/ofdgo_editor_rich_text.go
@@ -743,7 +743,7 @@ func (e *Editor) promoteTextValue(t TextObject) (RichText, error) {
 		}
 		color = fmt.Sprintf("%d %d %d", r>>8, g>>8, b>>8)
 	}
-	result := RichText{Runs: []RichTextRun{{Text: value, Format: TextFormat{Font: t.Font, Size: t.Size, Color: color, Bold: t.Weight == 700, Italic: t.Italic}}}, Layout: layout}
+	result := RichText{AutoWidth: t.layout == nil, Runs: []RichTextRun{{Text: value, Format: TextFormat{Font: t.Font, Size: t.Size, Color: color, Bold: t.Weight == 700, Italic: t.Italic}}}, Layout: layout}
 	return result, result.Validate()
 }
 
@@ -1134,7 +1134,8 @@ func (e *Editor) TargetRichText(page int, path ObjectPath) (RichText, error) {
 	return value, err
 }
 
-// PrepareRichText 读取独立富文本模型和局部编辑框，显式重排时保留原首行起点及页面变换
+// PrepareRichText 读取独立富文本模型和局部编辑框，定位文字采用自然宽度，已知段落保留宽度
+// 显式重排保留原首行起点及页面变换，不从原始Boundary推断段落宽度
 // 入参: page 页面索引, path 完整对象路径, reflow 是否允许重排普通文字
 // 返回: RichText 内容, Box 局部编辑框, Matrix 页面变换, error 路径、外观或排版错误
 func (e *Editor) PrepareRichText(page int, path ObjectPath, reflow bool) (RichText, Box, Matrix, error) {
@@ -1193,6 +1194,7 @@ func (e *Editor) PrepareRichText(page int, path ObjectPath, reflow bool) (RichTe
 	if err != nil {
 		return RichText{}, Box{}, Matrix{}, err
 	}
+	autoWidth := text.layout == nil
 	if reflow {
 		value, layout := text.TextLayout()
 		layout.AutoBidi = true
@@ -1201,7 +1203,18 @@ func (e *Editor) PrepareRichText(page int, path ObjectPath, reflow bool) (RichTe
 		}
 	}
 	value, err := e.promoteTextValue(text)
-	return value, Box{W: frame.W, H: frame.H}, matrix.Multiply(TranslationMatrix(dx, dy)), err
+	if err != nil {
+		return RichText{}, Box{}, Matrix{}, err
+	}
+	value.AutoWidth = autoWidth
+	if autoWidth {
+		result, err := e.layoutRichText(value, frame.W)
+		if err != nil {
+			return RichText{}, Box{}, Matrix{}, err
+		}
+		frame.W, frame.H = result.width, result.bounds.Y+result.bounds.H
+	}
+	return value, Box{W: frame.W, H: frame.H}, matrix.Multiply(TranslationMatrix(dx, dy)), nil
 }
 
 // ReflowRichText 原子重排完整路径文字，保留局部宽度、页面变换及共享实例隔离