--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/platform/java/jni/android/androidfonts.c	Mon Sep 15 11:44:09 2025 +0200
@@ -0,0 +1,118 @@
+// Copyright (C) 2004-2025 Artifex Software, Inc.
+//
+// This file is part of MuPDF.
+//
+// MuPDF is free software: you can redistribute it and/or modify it under the
+// terms of the GNU Affero General Public License as published by the Free
+// Software Foundation, either version 3 of the License, or (at your option)
+// any later version.
+//
+// MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+// details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
+//
+// Alternative licensing terms are available from the licensor.
+// For commercial licensing, see <https://www.artifex.com/> or contact
+// Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
+// CA 94129, USA, for further information.
+
+/* Android font functions */
+
+static fz_font *load_noto(fz_context *ctx, const char *a, const char *b, const char *c, int idx)
+{
+	char buf[500];
+	fz_font *font = NULL;
+	fz_try(ctx)
+	{
+		fz_snprintf(buf, sizeof buf, "/system/fonts/%s%s%s.ttf", a, b, c);
+		if (!fz_file_exists(ctx, buf))
+			fz_snprintf(buf, sizeof buf, "/system/fonts/%s%s%s.otf", a, b, c);
+		if (!fz_file_exists(ctx, buf))
+			fz_snprintf(buf, sizeof buf, "/system/fonts/%s%s%s.ttc", a, b, c);
+		if (fz_file_exists(ctx, buf))
+			font = fz_new_font_from_file(ctx, NULL, buf, idx, 0);
+	}
+	fz_catch(ctx)
+		return NULL;
+	return font;
+}
+
+static fz_font *load_noto_cjk(fz_context *ctx, int lang)
+{
+	fz_font *font = load_noto(ctx, "NotoSerif", "CJK", "-Regular", lang);
+	if (!font) font = load_noto(ctx, "NotoSans", "CJK", "-Regular", lang);
+	if (!font) font = load_noto(ctx, "DroidSans", "Fallback", "", 0);
+	return font;
+}
+
+static fz_font *load_noto_arabic(fz_context *ctx)
+{
+	fz_font *font = load_noto(ctx, "Noto", "Naskh", "-Regular", 0);
+	if (!font) font = load_noto(ctx, "Noto", "NaskhArabic", "-Regular", 0);
+	if (!font) font = load_noto(ctx, "Droid", "Naskh", "-Regular", 0);
+	if (!font) font = load_noto(ctx, "NotoSerif", "Arabic", "-Regular", 0);
+	if (!font) font = load_noto(ctx, "NotoSans", "Arabic", "-Regular", 0);
+	if (!font) font = load_noto(ctx, "DroidSans", "Arabic", "-Regular", 0);
+	return font;
+}
+
+static fz_font *load_noto_try(fz_context *ctx, const char *stem)
+{
+	fz_font *font = load_noto(ctx, "NotoSerif", stem, "-Regular", 0);
+	if (!font) font = load_noto(ctx, "NotoSerif", stem, "-VF", 0);
+	if (!font) font = load_noto(ctx, "NotoSans", stem, "-Regular", 0);
+	if (!font) font = load_noto(ctx, "NotoSans", stem, "-VF", 0);
+	if (!font) font = load_noto(ctx, "DroidSans", stem, "-Regular", 0);
+	return font;
+}
+
+enum { JP, KR, SC, TC };
+
+fz_font *load_droid_fallback_font(fz_context *ctx, int script, int language, int serif, int bold, int italic)
+{
+	const char *stem = NULL;
+	switch (script)
+	{
+	case UCDN_SCRIPT_HANGUL: return load_noto_cjk(ctx, KR);
+	case UCDN_SCRIPT_HIRAGANA: return load_noto_cjk(ctx, JP);
+	case UCDN_SCRIPT_KATAKANA: return load_noto_cjk(ctx, JP);
+	case UCDN_SCRIPT_BOPOMOFO: return load_noto_cjk(ctx, TC);
+	case UCDN_SCRIPT_HAN:
+		switch (language)
+		{
+		case FZ_LANG_ja: return load_noto_cjk(ctx, JP);
+		case FZ_LANG_ko: return load_noto_cjk(ctx, KR);
+		case FZ_LANG_zh_Hans: return load_noto_cjk(ctx, SC);
+		default:
+		case FZ_LANG_zh_Hant: return load_noto_cjk(ctx, TC);
+		}
+	case UCDN_SCRIPT_ARABIC:
+		return load_noto_arabic(ctx);
+	default:
+		stem = fz_lookup_noto_stem_from_script(ctx, script, language);
+		if (stem)
+			return load_noto_try(ctx, stem);
+	}
+	return NULL;
+}
+
+fz_font *load_droid_cjk_font(fz_context *ctx, const char *name, int ros, int serif)
+{
+	switch (ros)
+	{
+	case FZ_ADOBE_CNS: return load_noto_cjk(ctx, TC);
+	case FZ_ADOBE_GB: return load_noto_cjk(ctx, SC);
+	case FZ_ADOBE_JAPAN: return load_noto_cjk(ctx, JP);
+	case FZ_ADOBE_KOREA: return load_noto_cjk(ctx, KR);
+	}
+	return NULL;
+}
+
+fz_font *load_droid_font(fz_context *ctx, const char *name, int bold, int italic, int needs_exact_metrics)
+{
+	return NULL;
+}