fixed aspect ratio for image with exif orientation tag #2316

bpampuch · Nov 6, 2024 · 9052559 · 9052559
1 parent 302432c
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## Unreleased
+
+- Fixed aspect ratio for image with exif orientation tag
+
 ## 0.2.15 - 2024-11-02
 
 - Added support PDF/A and PDF/UA (see [documentation](https://pdfmake.github.io/docs/0.1/document-definition-object/pdfa/))

diff --git a/src/imageMeasure.js b/src/imageMeasure.js
@@ -26,7 +26,16 @@ ImageMeasure.prototype.measureImage = function (src) {
 		image = this.pdfKitDoc._imageRegistry[src];
 	}
 
-	return { width: image.width, height: image.height };
+	var imageSize = { width: image.width, height: image.height };
+
+	if (typeof image === 'object' && image.constructor.name === 'JPEG') {
+		// If EXIF orientation calls for it, swap width and height
+		if (image.orientation > 4) {
+			imageSize = { width: image.height, height: image.width };
+		}
+	}
+
+	return imageSize;
 
 	function realImageSrc(src) {
 		var img = that.imageDictionary[src];