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+[![Build Status](https://github.com/zxing-cpp/zxing-cpp/workflows/CI/badge.svg?branch=master)](https://github.com/zxing-cpp/zxing-cpp/actions?query=workflow%3ACI)
+
+# ZXing-C++
+
+ZXing-C++ ("zebra crossing") is an open-source, multi-format linear/matrix barcode image processing library implemented in C++.
+
+It was originally ported from the Java [ZXing Library](https://github.com/zxing/zxing) but has been developed further and now includes many improvements in terms of runtime and detection performance. It can both read and write barcodes in a number of formats.
+
+## Sponsors
+
+You can sponsor this library at [GitHub Sponsors](https://github.com/sponsors/axxel).
+
+Named Sponsors:
+* [KURZ Digital Solutions GmbH & Co. KG](https://github.com/kurzdigital)
+* [Useful Sensors Inc](https://github.com/usefulsensors)
+* [EUREKAM](https://eurekam.fr/)
+
+Thanks a lot for your contribution!
+
+## Features
+
+* Written in pure C++20 (/C++17), no third-party dependencies (for the library itself)
+* Thread safe
+* Wrappers/Bindings for:
+  * [Android](wrappers/android/README.md)
+  * [C](wrappers/c/README.md)
+  * [iOS](wrappers/ios/README.md)
+  * [Kotlin/Native](wrappers/kn/README.md)
+  * [.NET](wrappers/dotnet/README.md)
+  * [Python](wrappers/python/README.md)
+  * [Rust](wrappers/rust/README.md)
+  * [WebAssembly](wrappers/wasm/README.md)
+  * [WinRT](wrappers/winrt/README.md)
+  * [Flutter](https://pub.dev/packages/flutter_zxing) (external project)
+
+## Supported Formats
+
+| Linear product  | Linear industrial | Matrix             |
+|-----------------|-------------------|--------------------|
+| UPC-A           | Code 39           | QR Code            |
+| UPC-E           | Code 93           | Micro QR Code      |
+| EAN-8           | Code 128          | rMQR Code          |
+| EAN-13          | Codabar           | Aztec              |
+| DataBar         | DataBar Expanded  | DataMatrix         |
+| DataBar Limited | DX Film Edge      | PDF417             |
+|                 | ITF               | MaxiCode (partial) |
+
+[Note:]
+ * DataBar used to be called RSS.
+ * DataBar, DX Film Edge, MaxiCode, Micro QR Code and rMQR Code are not supported for writing (unless the library is configured `ZXING_WRITERS=NEW` and `ZXING_EXPERIMENTAL_API=ON`).
+ * Building with only C++17 (see [CMakeLists.txt](https://github.com/zxing-cpp/zxing-cpp/blob/d4b0f502775857f257d13efd25fb840ece1bca3e/CMakeLists.txt#L45)) changes the behavior of the library: it then lacks support for DataBarLimited and multi-symbol and position independent detection for DataMatrix.
+
+## Getting Started
+
+### To read barcodes:
+1. Load your image into memory (3rd-party library required).
+2. Call `ReadBarcodes()` from [`ReadBarcode.h`](core/src/ReadBarcode.h), the simplest API to get a list of `Barcode` objects.
+
+A very simple example looks like this:
+```c++
+#include "ZXing/ReadBarcode.h"
+#include <iostream>
+
+int main(int argc, char** argv)
+{
+    int width, height;
+    unsigned char* data;
+    // load your image data from somewhere. ImageFormat::Lum assumes grey scale image data.
+
+    auto image = ZXing::ImageView(data, width, height, ZXing::ImageFormat::Lum);
+    auto options = ZXing::ReaderOptions().setFormats(ZXing::BarcodeFormat::Any);
+    auto barcodes = ZXing::ReadBarcodes(image, options);
+
+    for (const auto& b : barcodes)
+        std::cout << ZXing::ToString(b.format()) << ": " << b.text() << "\n";
+
+    return 0;
+}
+```
+To see the full capability of the API, have a look at [`ZXingReader.cpp`](example/ZXingReader.cpp).
+
+[Note: At least C++17 is required on the client side to use the API.]
+
+### To write barcodes:
+1. Create a [`MultiFormatWriter`](core/src/MultiFormatWriter.h) instance with the format you want to generate. Set encoding and margins if needed.
+2. Call `encode()` with text content and the image size. This returns a [`BitMatrix`](core/src/BitMatrix.h) which is a binary image of the barcode where `true` == visual black and `false` == visual white.
+3. Convert the bit matrix to your native image format. See also the `ToMatrix<T>(BitMatrix&)` helper function.
+
+As an example, have a look at [`ZXingWriter.cpp`](example/ZXingWriter.cpp). That file also contains example code showing the new `ZXING_EXPERIMENTAL_API` for writing barcodes.
+
+## Web Demos
+- [Read barcodes](https://zxing-cpp.github.io/zxing-cpp/demo_reader.html)
+- [Write barcodes](https://zxing-cpp.github.io/zxing-cpp/demo_writer.html)
+- [Read barcodes from camera](https://zxing-cpp.github.io/zxing-cpp/demo_cam_reader.html)
+
+[Note: those live demos are not necessarily fully up-to-date at all times.]
+
+## Build Instructions
+These are the generic instructions to build the library on Windows/macOS/Linux. For details on how to build the individual wrappers, follow the links above.
+
+1. Make sure [CMake](https://cmake.org) version 3.16 or newer is installed. The python module requires 3.18 or higher.
+2. Make sure a sufficiently C++20 compliant compiler is installed (minimum VS 2019 16.10? / gcc 11 / clang 12?).
+3. See the cmake `ZXING_...` options to enable the testing code, python wrapper, etc.
+
+```
+git clone https://github.com/zxing-cpp/zxing-cpp.git --recursive --single-branch --depth 1
+cmake -S zxing-cpp -B zxing-cpp.release -DCMAKE_BUILD_TYPE=Release
+cmake --build zxing-cpp.release -j8 --config Release
+```
+
+[Note: binary packages are available for/as
+[vcpkg](https://github.com/Microsoft/vcpkg/tree/master/ports/nu-book-zxing-cpp),
+[conan](https://github.com/conan-io/conan-center-index/tree/master/recipes/zxing-cpp),
+[mingw](https://github.com/msys2/MINGW-packages/tree/master/mingw-w64-zxing-cpp) and a bunch of
+[linux distributions](https://repology.org/project/zxing-cpp/versions).]