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pareenaverma merged 1 commit into from
Nov 2, 2026
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C2PA Install Guide Tech review #3978

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24 changes: 19 additions & 5 deletions content/install-guides/c2patool.md
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Expand Up @@ -26,6 +26,11 @@ Coalition for Content Provenance and Authenticity (C2PA) standard to record medi
You can install C2PA Tool on 64-bit Arm Linux, macOS on Apple silicon, or Windows on Arm.
The Linux instructions cover Ubuntu and Debian.

On macOS, install C2PA Tool with Homebrew. On Arm Linux and Windows on Arm, the following
steps use Cargo, Rust's package manager, to download the source code, compile it for Arm,
and install the executable. Building from source produces an executable that runs natively
on your Arm system.

Homebrew and Cargo install the version available from their package source. For release
information, see [C2PA Tool releases](https://github.com/contentauth/c2patool/releases).

Expand All @@ -39,8 +44,7 @@ brew install c2patool

## Install on Arm Linux

Prebuilt Linux releases target `x86_64`. Use Cargo to build and install a native `aarch64`
executable.
Build C2PA Tool from source on your Arm Linux system to install a native `aarch64` executable.

Install the build dependencies on Ubuntu or Debian:

Expand All @@ -49,7 +53,7 @@ sudo apt update
sudo apt install -y build-essential pkg-config libssl-dev
```

Install [Rust](/install-guides/rust/) to obtain Cargo, then install C2PA Tool:
Install [Rust](/install-guides/rust/) to obtain Cargo, then build and install C2PA Tool from source:

```console
cargo install c2patool --locked
Expand All @@ -59,10 +63,20 @@ Cargo installs `c2patool` in `$HOME/.cargo/bin`.

## Install on Windows on Arm

Prebuilt Windows releases target `x86_64`. Use Cargo to build and install a native ARM64 executable.
Build C2PA Tool from source with the ARM64 Rust toolchain to install a native ARM64 executable
on Windows on Arm.

Install the Microsoft C++ Build Tools and [Rust](https://www.rust-lang.org/tools/install) with the
MSVC toolchain for ARM64. Open a new PowerShell window and run:
MSVC toolchain for ARM64. Install [7-Zip](https://www.7-zip.org/) and add its installation
directory (typically `C:\Program Files\7-Zip`) to your `PATH`.

Open a new PowerShell window and confirm that 7-Zip is available:

```console
7z -h
```

The output displays the 7-Zip version and command usage. Then build and install C2PA Tool from source:

```console
cargo install c2patool --locked
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