Shared CPDF_Parser + per-layer overlay holder

.github/workflows/pdfium-tsan-thread-soak.yml

@@ -1,4 +1,7 @@
-name: PDFium TSAN Thread Soak
+# Copyright 2026 CloudPDF LTD
+# SPDX-License-Identifier: Apache-2.0
+
+name: CloudPDF Runtime TSAN Thread Soak
 
 on:
   workflow_dispatch:

.github/workflows/release-libpdfium.yml

@@ -1,4 +1,7 @@
-name: Release EmbedPDF PDF Runtime Libraries
+# Copyright 2026 CloudPDF LTD
+# SPDX-License-Identifier: Apache-2.0
+
+name: Release CloudPDF Runtime Libraries
 
 on:
   workflow_dispatch:
@@ -118,6 +121,8 @@ jobs:
       - name: Install Emscripten
         if: matrix.target == 'wasm32'
         shell: bash
+        env:
+          DEPOT_TOOLS_PYTHON_BYPASS: '1'
         run: |
           mkdir -p third_party
           if [[ -d third_party/emsdk ]]; then

BUILD.gn

@@ -51,6 +51,13 @@ config("pdfium_common_config") {
     defines += [ "PDF_USE_PARTITION_ALLOC" ]
   }
 
+  # EmbedPDF: thread-confined runtime. Translates the embedpdf_thread_local_globals
+  # GN arg into the EPDF_THREAD_LOCAL_GLOBALS define consumed by EPDF_TLS
+  # (core/fxcrt/epdf_tls.h). Default off; see pdfium.gni.
+  if (embedpdf_thread_local_globals) {
+    defines += [ "EPDF_THREAD_LOCAL_GLOBALS" ]
+  }
+
   if (is_win) {
     # Assume UTF-8 by default to avoid code page dependencies.
     cflags += [ "/utf-8" ]
@@ -191,6 +198,16 @@ source_set("pdfium_public_headers_impl") {
   sources = [
     "public/cpp/fpdf_deleters.h",
     "public/cpp/fpdf_scopers.h",
+    # EmbedPDF: detached, read-only PDF action models.
+    "public/epdf_action.h",
+    # EmbedPDF: public runtime font registration API used by page fallback
+    # rendering and annotation authoring.
+    "public/epdf_font.h",
+    # EmbedPDF: session-free AcroForm model, write transactions, FDF/XFDF.
+    "public/epdf_form.h",
+    # EmbedPDF: generic namespace-scoped document/page /PieceInfo metadata.
+    "public/epdf_pieceinfo.h",
+    "public/epdf_redact.h",
     "public/fpdf_annot.h",
     "public/fpdf_attachment.h",
     "public/fpdf_catalog.h",
@@ -431,6 +448,9 @@ group("pdfium_all") {
     ":pdfium_unittests",
     "testing:pdfium_test",
     "testing/fuzzers",
+    "testing/tools:epdf_layer_memory_benchmark",
+    "testing/tools:epdf_layer_replay_soak",
+    "testing/tools:epdf_thread_soak",
   ]
 
   if (pdf_is_standalone) {

NOTICE

@@ -0,0 +1,25 @@
+CloudPDF Runtime Additions
+Copyright 2025-2026 CloudPDF LTD
+
+Files identified in scripts/embedpdf-runtime/cloudpdf-owned-source-files.txt
+and marked with SPDX-License-Identifier: Apache-2.0 are licensed by
+CloudPDF LTD under the Apache License, Version 2.0. The Apache License text
+is included in this repository's LICENSE file.
+
+This repository is based on PDFium. PDFium source and source derived from
+PDFium remain subject to PDFium's BSD-style license and retain their original
+copyright and license notices. Third-party components and test assets remain
+subject to their respective upstream licenses. The CloudPDF Apache-2.0 notice
+does not replace or supersede those upstream terms.
+
+The following source files were reintroduced or adapted in CloudPDF commits
+but intentionally retain PDFium attribution because their provenance is
+upstream PDFium:
+
+  core/fxcodec/png/pngmodule.cpp
+  core/fxcodec/png/pngmodule.h
+  fpdfsdk/epdf_flatten.cpp
+
+Patch artifacts under patches/embedpdf-runtime and binary or generated test
+resources are excluded from the CloudPDF-owned source manifest unless they
+contain standalone CloudPDF-authored source.

constants/metadata.h

@@ -1,6 +1,5 @@
-// Copyright 2025 The PDFium Authors
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
+// Copyright 2025 CloudPDF LTD
+// SPDX-License-Identifier: Apache-2.0
 
 #ifndef CONSTANTS_METADATA_H_
 #define CONSTANTS_METADATA_H_

core/fpdfapi/edit/BUILD.gn

@@ -53,6 +53,7 @@ source_set("contentstream_write_utils") {
 
 pdfium_unittest_source_set("unittests") {
   sources = [
+    "cpdf_creator_unittest.cpp",
     "cpdf_npagetooneexporter_unittest.cpp",
     "cpdf_pagecontentgenerator_unittest.cpp",
   ]