--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/include/mupdf/pdf/cmap.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,145 @@
+// 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.
+
+#ifndef MUPDF_PDF_CMAP_H
+#define MUPDF_PDF_CMAP_H
+
+#include "mupdf/fitz/store.h"
+#include "mupdf/pdf/document.h"
+
+#define PDF_MRANGE_CAP 32
+
+typedef struct
+{
+	unsigned short low, high, out;
+} pdf_range;
+
+typedef struct
+{
+	unsigned int low, high, out;
+} pdf_xrange;
+
+typedef struct
+{
+	unsigned int low, out;
+} pdf_mrange;
+
+typedef struct cmap_splay cmap_splay;
+
+typedef struct pdf_cmap
+{
+	fz_storable storable;
+	char cmap_name[32];
+
+	char usecmap_name[32];
+	struct pdf_cmap *usecmap;
+
+	int wmode;
+
+	int codespace_len;
+	struct
+	{
+		int n;
+		unsigned int low;
+		unsigned int high;
+	} codespace[40];
+
+	int rlen, rcap;
+	pdf_range *ranges;
+
+	int xlen, xcap;
+	pdf_xrange *xranges;
+
+	int mlen, mcap;
+	pdf_mrange *mranges;
+
+	int dlen, dcap;
+	int *dict;
+
+	int tlen, tcap, ttop;
+	cmap_splay *tree;
+} pdf_cmap;
+
+pdf_cmap *pdf_new_cmap(fz_context *ctx);
+pdf_cmap *pdf_keep_cmap(fz_context *ctx, pdf_cmap *cmap);
+void pdf_drop_cmap(fz_context *ctx, pdf_cmap *cmap);
+void pdf_drop_cmap_imp(fz_context *ctx, fz_storable *cmap);
+size_t pdf_cmap_size(fz_context *ctx, pdf_cmap *cmap);
+
+int pdf_cmap_wmode(fz_context *ctx, pdf_cmap *cmap);
+void pdf_set_cmap_wmode(fz_context *ctx, pdf_cmap *cmap, int wmode);
+void pdf_set_usecmap(fz_context *ctx, pdf_cmap *cmap, pdf_cmap *usecmap);
+
+/*
+	Add a codespacerange section.
+	These ranges are used by pdf_decode_cmap to decode
+	multi-byte encoded strings.
+*/
+void pdf_add_codespace(fz_context *ctx, pdf_cmap *cmap, unsigned int low, unsigned int high, size_t n);
+
+/*
+	Add a range of contiguous one-to-one mappings (i.e. 1..5 maps to 21..25)
+*/
+void pdf_map_range_to_range(fz_context *ctx, pdf_cmap *cmap, unsigned int srclo, unsigned int srchi, int dstlo);
+
+/*
+	Add a single one-to-many mapping.
+
+	len <= 256.
+*/
+void pdf_map_one_to_many(fz_context *ctx, pdf_cmap *cmap, unsigned int one, int *many, size_t len);
+void pdf_sort_cmap(fz_context *ctx, pdf_cmap *cmap);
+
+/*
+	Lookup the mapping of a codepoint.
+*/
+int pdf_lookup_cmap(pdf_cmap *cmap, unsigned int cpt);
+int pdf_lookup_cmap_full(pdf_cmap *cmap, unsigned int cpt, int *out);
+
+/*
+	Use the codespace ranges to extract a codepoint from a
+	multi-byte encoded string.
+*/
+int pdf_decode_cmap(pdf_cmap *cmap, unsigned char *s, unsigned char *e, unsigned int *cpt);
+
+/*
+	Create an Identity-* CMap (for both 1 and 2-byte encodings)
+*/
+pdf_cmap *pdf_new_identity_cmap(fz_context *ctx, int wmode, int bytes);
+pdf_cmap *pdf_load_cmap(fz_context *ctx, fz_stream *file);
+
+/*
+	Load predefined CMap from system.
+*/
+pdf_cmap *pdf_load_system_cmap(fz_context *ctx, const char *name);
+
+/*
+	Load built-in CMap resource.
+*/
+pdf_cmap *pdf_load_builtin_cmap(fz_context *ctx, const char *name);
+
+/*
+	Load CMap stream in PDF file
+*/
+pdf_cmap *pdf_load_embedded_cmap(fz_context *ctx, pdf_document *doc, pdf_obj *ref);
+
+#endif