1. Overview A TTF to APK Converter is a specialized tool that packages one or more TrueType Font (.ttf) files into an installable Android application package (.apk). The resulting APK, when installed, makes the custom font available for use in other apps—typically through Android's built-in font picker (Android 8.0+) or by acting as a font provider.
# Optional: font_certs.xml for API 26+ font provider xml_dir = os.path.join(self.temp_dir, "res", "xml") os.makedirs(xml_dir, exist_ok=True) certs_xml = os.path.join(xml_dir, f"self.ttf_path.stem_certs.xml") with open(certs_xml, "w") as f: f.write('''<?xml version="1.0" encoding="utf-8"?> <font-provider xmlns:android="http://schemas.android.com/apk/res/android" android:authority="%s.fonts" android:query="true" />''' % self.package_name) return ttf_copy
def create_font_resource(self): """Place TTF in res/font/ and generate font family XML""" font_dir = os.path.join(self.temp_dir, "res", "font") os.makedirs(font_dir, exist_ok=True) ttf_copy = os.path.join(font_dir, self.ttf_path.name) shutil.copy(self.ttf_path, ttf_copy) Ttf To Apk Converter
def create_apk(self, output_apk="output.apk"): """Assemble APK (unsigned first) then sign with debug key""" self.create_font_resource() self.generate_android_manifest()
# Sign with Android debug key (requires apksigner or jarsigner) signed_apk = output_apk subprocess.run([ "apksigner", "sign", "--ks", os.path.expanduser("~/.android/debug.keystore"), "--ks-pass", "pass:android", "--out", signed_apk, unsigned_apk ], check=True) print(f"APK created: signed_apk") return signed_apk # Optional: font_certs
The provided Python script serves as a working minimal prototype. For production use, integrate with aapt (Android Asset Packaging Tool) and robust signing mechanisms. This development piece is provided for educational purposes. Always respect font licensing agreements.
# Build APK as zip with resources unsigned_apk = os.path.join(self.temp_dir, "unsigned.apk") with zipfile.ZipFile(unsigned_apk, 'w', zipfile.ZIP_DEFLATED) as apk: apk.write(os.path.join(self.temp_dir, "AndroidManifest.xml"), "AndroidManifest.xml") for root, _, files in os.walk(os.path.join(self.temp_dir, "res")): for file in files: full_path = os.path.join(root, file) arc_name = os.path.relpath(full_path, self.temp_dir) apk.write(full_path, arc_name) Always respect font licensing agreements
class TtfToApkConverter: def (self, ttf_path, package_name="com.font.custom", version="1.0"): self.ttf_path = Path(ttf_path) self.package_name = package_name self.version = version self.temp_dir = tempfile.mkdtemp()
def generate_android_manifest(self): """Create minimal AndroidManifest.xml""" manifest = ET.Element("manifest", "xmlns:android": "http://schemas.android.com/apk/res/android", "package": self.package_name, "android:versionCode": "1", "android:versionName": self.version ) application = ET.SubElement(manifest, "application", "android:allowBackup": "false", "android:label": f"Font: self.ttf_path.stem" ) # No activity = hidden app, installs only font ET.SubElement(application, "meta-data", "android:name": "font_provider_authority", "android:resource": f"@xml/self.ttf_path.stem_certs" ) tree = ET.ElementTree(manifest) manifest_path = os.path.join(self.temp_dir, "AndroidManifest.xml") tree.write(manifest_path, encoding="utf-8", xml_declaration=True) return manifest_path
#!/usr/bin/env python3 """ TTF to APK Converter - Minimal Viable Implementation Requires: python3, androguard, zipfile, xml.etree, hashlib """ import os import zipfile import xml.etree.ElementTree as ET import subprocess import shutil import tempfile from pathlib import Path