✨(docx) fix image overflow by limiting width to 600px during export

ensures all images keep proportions and stay within page bounds in docx export

Signed-off-by: Cyril <c.gromoff@gmail.com>

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to
 
 - ♿(frontend) improve accessibility:
   - ♿(frontend) improve ARIA in doc grid and editor for a11y #1519
+- 🐛(docx) fix image overflow by limiting width to 600px during export #1525
 
 ## [3.9.0] - 2025-11-10
 

src/frontend/apps/impress/src/features/docs/doc-export/blocks-mapping/imageDocx.tsx

@@ -50,9 +50,9 @@ export const blockMappingImageDocx: DocsExporterDocx['mappings']['blockMapping']
 
     const { width, height } = dimensions;
 
-    if (previewWidth && previewWidth > MAX_WIDTH) {
+    // Ensure the final width never exceeds MAX_WIDTH to prevent images
-      previewWidth = MAX_WIDTH;
+    // from overflowing the page width in the exported document
-    }
+    const finalWidth = Math.min(previewWidth || width, MAX_WIDTH);
 
     return [
       new Paragraph({
@@ -71,8 +71,8 @@ export const blockMappingImageDocx: DocsExporterDocx['mappings']['blockMapping']
                 }
               : undefined,
             transformation: {
-              width: previewWidth || width,
+              width: finalWidth,
-              height: ((previewWidth || width) / width) * height,
+              height: (finalWidth / width) * height,
             },
           }),
         ],