diff --git a/packages/editor/api-report.md b/packages/editor/api-report.md
index 8a863097b..51279b3b4 100644
--- a/packages/editor/api-report.md
+++ b/packages/editor/api-report.md
@@ -569,9 +569,6 @@ export function blobAsString(blob: Blob): Promise<string>;
 // @internal (undocumented)
 export const BOUND_ARROW_OFFSET = 10;
 
-// @internal (undocumented)
-export function buildFromV1Document(app: App, document: LegacyTldrawDocument): void;
-
 // @public (undocumented)
 export const Canvas: React_3.MemoExoticComponent<({ onDropOverride, }: {
     onDropOverride?: ((defaultOnDrop: (e: React_3.DragEvent<Element>) => Promise<void>) => (e: React_3.DragEvent<Element>) => Promise<void>) | undefined;
@@ -923,22 +920,6 @@ export const isValidHttpURL: (url: string) => boolean;
 // @public (undocumented)
 export const LABEL_FONT_SIZES: Record<TLSizeType, number>;
 
-// @internal (undocumented)
-export interface LegacyTldrawDocument {
-    // (undocumented)
-    assets: TDAssets;
-    // (undocumented)
-    id: string;
-    // (undocumented)
-    name: string;
-    // (undocumented)
-    pages: Record<string, TDPage>;
-    // (undocumented)
-    pageStates: Record<string, TLV1PageState>;
-    // (undocumented)
-    version: number;
-}
-
 // @public (undocumented)
 export function LoadingScreen({ children }: {
     children: any;
diff --git a/packages/editor/src/index.ts b/packages/editor/src/index.ts
index b91acd2ea..6124be3b5 100644
--- a/packages/editor/src/index.ts
+++ b/packages/editor/src/index.ts
@@ -204,7 +204,6 @@ export {
 	isSvgText,
 	isValidHttpURL,
 } from './lib/utils/assets'
-export { buildFromV1Document, type LegacyTldrawDocument } from './lib/utils/buildFromV1Document'
 export {
 	checkFlag,
 	fileToBase64,
diff --git a/packages/file-format/api-report.md b/packages/file-format/api-report.md
index 3d0b607fe..5f5d3c242 100644
--- a/packages/file-format/api-report.md
+++ b/packages/file-format/api-report.md
@@ -14,9 +14,28 @@ import { TLTranslationKey } from '@tldraw/ui';
 import { ToastsContextType } from '@tldraw/ui';
 import { UnknownRecord } from '@tldraw/tlstore';
 
+// @internal (undocumented)
+export function buildFromV1Document(app: App, document: LegacyTldrawDocument): void;
+
 // @public (undocumented)
 export function isV1File(data: any): boolean;
 
+// @internal (undocumented)
+export interface LegacyTldrawDocument {
+    // (undocumented)
+    assets: TDAssets;
+    // (undocumented)
+    id: string;
+    // (undocumented)
+    name: string;
+    // (undocumented)
+    pages: Record<string, TDPage>;
+    // (undocumented)
+    pageStates: Record<string, TLV1PageState>;
+    // (undocumented)
+    version: number;
+}
+
 // @internal (undocumented)
 export function parseAndLoadDocument(app: App, document: string, msg: (id: TLTranslationKey) => string, addToast: ToastsContextType['addToast'], onV1FileLoad?: () => void, forceDarkMode?: boolean): Promise<void>;
 
diff --git a/packages/file-format/package.json b/packages/file-format/package.json
index c5e64e9e1..09ebd1667 100644
--- a/packages/file-format/package.json
+++ b/packages/file-format/package.json
@@ -42,6 +42,7 @@
 	},
 	"dependencies": {
 		"@tldraw/editor": "workspace:*",
+		"@tldraw/primitives": "workspace:*",
 		"@tldraw/tlstore": "workspace:*",
 		"@tldraw/tlvalidate": "workspace:*",
 		"@tldraw/ui": "workspace:*",
diff --git a/packages/file-format/src/index.ts b/packages/file-format/src/index.ts
index c8b4a5cb5..9cb2c43e9 100644
--- a/packages/file-format/src/index.ts
+++ b/packages/file-format/src/index.ts
@@ -1,3 +1,4 @@
+export { buildFromV1Document, type LegacyTldrawDocument } from './lib/buildFromV1Document'
 export {
 	TLDRAW_FILE_EXTENSION,
 	TLDRAW_FILE_MIMETYPE,
diff --git a/packages/editor/src/lib/utils/buildFromV1Document.ts b/packages/file-format/src/lib/buildFromV1Document.ts
similarity index 99%
rename from packages/editor/src/lib/utils/buildFromV1Document.ts
rename to packages/file-format/src/lib/buildFromV1Document.ts
index 007b3bfaa..b896e357e 100644
--- a/packages/editor/src/lib/utils/buildFromV1Document.ts
+++ b/packages/file-format/src/lib/buildFromV1Document.ts
@@ -1,11 +1,13 @@
-import { clamp, Vec2d } from '@tldraw/primitives'
 import {
+	App,
 	AssetRecordType,
+	MAX_SHAPES_PER_PAGE,
 	PageRecordType,
 	TLAlignType,
-	TLArrowheadType,
 	TLArrowShape,
 	TLArrowTerminal,
+	TLArrowUtil,
+	TLArrowheadType,
 	TLAsset,
 	TLAssetId,
 	TLColorType,
@@ -22,17 +24,14 @@ import {
 	TLTextShape,
 	TLVideoShape,
 	Vec2dModel,
-} from '@tldraw/tlschema'
-import { transact } from 'signia'
-import { App } from '../app/App'
-import { TLArrowUtil } from '../app/shapeutils/TLArrowUtil/TLArrowUtil'
-import { MAX_SHAPES_PER_PAGE } from '../constants'
+} from '@tldraw/editor'
+import { Vec2d, clamp } from '@tldraw/primitives'
 
 const TLDRAW_V1_VERSION = 15.5
 
 /** @internal */
 export function buildFromV1Document(app: App, document: LegacyTldrawDocument) {
-	transact(() => {
+	app.batch(() => {
 		document = migrate(document, TLDRAW_V1_VERSION)
 		// Cancel any interactions / states
 		app.cancel().cancel().cancel().cancel()
diff --git a/packages/file-format/src/lib/file.ts b/packages/file-format/src/lib/file.ts
index f4f368abb..7ee031ea9 100644
--- a/packages/file-format/src/lib/file.ts
+++ b/packages/file-format/src/lib/file.ts
@@ -1,6 +1,5 @@
 import {
 	App,
-	buildFromV1Document,
 	createTLStore,
 	fileToBase64,
 	TLAsset,
@@ -19,6 +18,7 @@ import {
 import { T } from '@tldraw/tlvalidate'
 import { TLTranslationKey, ToastsContextType } from '@tldraw/ui'
 import { exhaustiveSwitchError, Result } from '@tldraw/utils'
+import { buildFromV1Document } from './buildFromV1Document'
 
 /** @public */
 export const TLDRAW_FILE_MIMETYPE = 'application/vnd.tldraw+json' as const
diff --git a/packages/file-format/tsconfig.json b/packages/file-format/tsconfig.json
index 965b92760..f2d4b975b 100644
--- a/packages/file-format/tsconfig.json
+++ b/packages/file-format/tsconfig.json
@@ -10,6 +10,7 @@
 		{ "path": "../editor" },
 		{ "path": "../tlstore" },
 		{ "path": "../tlvalidate" },
+		{ "path": "../primitives" },
 		{ "path": "../utils" },
 		{ "path": "../ui" }
 	]
diff --git a/public-yarn.lock b/public-yarn.lock
index 9a4919692..e1dc26153 100644
--- a/public-yarn.lock
+++ b/public-yarn.lock
@@ -4373,6 +4373,7 @@ __metadata:
   resolution: "@tldraw/file-format@workspace:packages/file-format"
   dependencies:
     "@tldraw/editor": "workspace:*"
+    "@tldraw/primitives": "workspace:*"
     "@tldraw/tlstore": "workspace:*"
     "@tldraw/tlvalidate": "workspace:*"
     "@tldraw/ui": "workspace:*"