diff --git a/app/services/font-manager.ts b/app/services/font-manager.ts
index 815ba0a..a4f3eea 100644
--- a/app/services/font-manager.ts
+++ b/app/services/font-manager.ts
@@ -1,6 +1,7 @@
 import Service from '@ember/service';
 import config from 'text2stl/config/environment';
 import { inject as service } from '@ember/service';
+import * as opentype from 'opentype.js';
 
 import type HarfbuzzService from 'text2stl/services/harfbuzz';
 import type { HBFont, HBFace } from 'harfbuzzjs/hbjs';
@@ -88,6 +89,7 @@ type GoogleFontApiResponse = {
 export interface FaceAndFont {
   font: HBFont;
   face: HBFace;
+  opentype: opentype.Font; // This is only used to determine outline type (TrueType / CFF). TODO: find how to do that with harfbuzz.
 }
 
 export default class FontManagerService extends Service {
@@ -133,6 +135,8 @@ export default class FontManagerService extends Service {
 
   fontCache: Record<string, FaceAndFont> = {};
 
+  opentype = opentype; // For easy mock
+
   _emojiFont?: FaceAndFont;
 
   get emojiFont() {
@@ -241,6 +245,7 @@ export default class FontManagerService extends Service {
     return {
       font: this.harfbuzz.hb.createFont(face),
       face,
+      opentype: this.opentype.parse(buffer),
     };
   }
 
diff --git a/app/services/text-maker.ts b/app/services/text-maker.ts
index 1bb7363..23ff9e9 100644
--- a/app/services/text-maker.ts
+++ b/app/services/text-maker.ts
@@ -101,7 +101,7 @@ export default class TextMakerService extends Service {
     // Following is only to manage "cff" font & detect hole shape
     const paths2D: Path2D[] = [];
     let path2D = new Path2D();
-
+    console.log(glyphPath);
     // https://github.com/opentypejs/opentype.js#path-commands
     for (let i = 0; i < glyphPath.length; i++) {
       const command = glyphPath[i];
@@ -412,6 +412,7 @@ export default class TextMakerService extends Service {
               lineText.glyphs[info.g],
               x, // x offset
               y - oy, // y offset
+              font.opentype.outlinesFormat === 'cff',
             ),
           );
           ox += spacing + info.ax;
diff --git a/package.json b/package.json
index 43ae578..688204a 100644
--- a/package.json
+++ b/package.json
@@ -139,6 +139,7 @@
     "@esri/calcite-components": "^1.9.1",
     "harfbuzzjs": "^0.3.4",
     "matter-js": "^0.17.1",
+    "opentype.js": "^1.3.3",
     "poly-decomp": "^0.3.0",
     "three": "^0.137.4"
   },
diff --git a/tests/helpers/mock-font-manager.ts b/tests/helpers/mock-font-manager.ts
index b748137..f08eb9b 100644
--- a/tests/helpers/mock-font-manager.ts
+++ b/tests/helpers/mock-font-manager.ts
@@ -1,5 +1,6 @@
 import Service, { inject as service } from '@ember/service';
 import loadFont from 'text2stl/tests/helpers/load-font';
+import type { Font } from 'opentype.js';
 
 import type { FaceAndFont } from 'text2stl/services/font-manager';
 
@@ -25,6 +26,7 @@ class FakeFontManager extends Service {
     return {
       font: this.harfbuzz.hb.createFont(face),
       face,
+      opentype: { outlinesFormat: 'trueType' } as Font,
     };
   }
 
@@ -38,6 +40,7 @@ class FakeFontManager extends Service {
     this.emojiFont = {
       font: this.harfbuzz.hb.createFont(face),
       face,
+      opentype: { outlinesFormat: 'trueType' } as Font,
     };
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 34204ec..6503a0b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8943,6 +8943,14 @@ onetime@^5.1.0, onetime@^5.1.2:
   dependencies:
     mimic-fn "^2.1.0"
 
+opentype.js@^1.3.3:
+  version "1.3.4"
+  resolved "https://registry.npmjs.org/opentype.js/-/opentype.js-1.3.4.tgz#1c0e72e46288473cc4a4c6a2dc60fd7fe6020d77"
+  integrity sha512-d2JE9RP/6uagpQAVtJoF0pJJA/fgai89Cc50Yp0EJHk+eLp6QQ7gBoblsnubRULNY132I0J1QKMJ+JTbMqz4sw==
+  dependencies:
+    string.prototype.codepointat "^0.2.1"
+    tiny-inflate "^1.0.3"
+
 opter@^1.1.0:
   version "1.1.0"
   resolved "https://registry.npmjs.org/opter/-/opter-1.1.0.tgz#2598aebb60b3f1a7322af1097086f4e798c84a76"
@@ -10524,6 +10532,11 @@ string-width@^2.1.0:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^4.0.0"
 
+string.prototype.codepointat@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.npmjs.org/string.prototype.codepointat/-/string.prototype.codepointat-0.2.1.tgz#004ad44c8afc727527b108cd462b4d971cd469bc"
+  integrity sha512-2cBVCj6I4IOvEnjgO/hWqXjqBGsY+zwPmHl12Srk9IXSZ56Jwwmy+66XO5Iut/oQVR7t5ihYdLB0GMa4alEUcg==
+
 string.prototype.matchall@^4.0.5, string.prototype.matchall@^4.0.6:
   version "4.0.11"
   resolved "https://registry.npmjs.org/string.prototype.matchall/-/string.prototype.matchall-4.0.11.tgz#1092a72c59268d2abaad76582dccc687c0297e0a"
@@ -10927,6 +10940,11 @@ tiny-glob@0.2.9:
     globalyzer "0.1.0"
     globrex "^0.1.2"
 
+tiny-inflate@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.npmjs.org/tiny-inflate/-/tiny-inflate-1.0.3.tgz#122715494913a1805166aaf7c93467933eea26c4"
+  integrity sha512-pkY1fj1cKHb2seWDy0B16HeWyczlJA9/WW3u3c4z/NiWDsO3DOU5D7nhTLE9CF0yXv/QZFY7sEJmj24dK+Rrqw==
+
 tiny-lr@^2.0.0:
   version "2.0.0"
   resolved "https://registry.npmjs.org/tiny-lr/-/tiny-lr-2.0.0.tgz#863659d7ce1ed201a117d8197d7f8b9a27bdc085"