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• Python: Versions 3.5–3.13
  Download from the official website: https://www.python.org/downloads/

• Supported on Intel and Apple Silicon (M-series) processors
• Requires additional system libraries for image and font rendering (see below)

• Windows 11 (x64)
• Windows 10 (x64, x86)
• Windows 7, 8, 8.1, Vista, XP (x64, x86)
• Windows Server 2003 and later

GroupDocs.Viewer for Python via .NET relies on libgdiplus to process images and documents that contain images.

On Linux, install the following packages to ensure correct operation.

1. libgdiplus — Mono library providing a GDI+-compatible API on non-Windows systems
2. libc6-dev — Development files for the GNU C Library

3. wget — File download utility
4. cabextract — Microsoft Cabinet file extractor
5. xfonts-utils — X11 font utilities
6. ttf-mscorefonts-installer — Microsoft-compatible core fonts

7. libicu67 — ICU library (exact version required)
8. libssl1.1 — OpenSSL library (exact version required)

Note:
The packages libicu67 and libssl1.1 must match the exact versions listed above.
If they are unavailable in your distribution’s default repositories, use a Debian snapshot repository or install them from alternative sources.

Use apt-get to install all required dependencies:

# Enable contrib repository (required for Microsoft fonts)
sudo sed -i 's/deb \(.*\) main$/deb \1 main contrib/g' /etc/apt/sources.list 2>/dev/null || \
    sudo sed -i 's/Components: main/Components: main contrib/g' /etc/apt/sources.list.d/*.sources 2>/dev/null || true

# Update package list
sudo apt-get update

# Accept Microsoft fonts EULA (non-interactive)
echo "ttf-mscorefonts-installer msttcorefonts/accepted-mscorefonts-eula select true" | sudo debconf-set-selections

# Install Microsoft fonts
sudo apt-get install -y --no-install-recommends \
    wget \
    cabextract \
    xfonts-utils \
    ttf-mscorefonts-installer

# Install System.Drawing.Common dependencies
sudo apt-get install -y --no-install-recommends \
    libgdiplus \
    libc6-dev

# Install globalization and cryptography dependencies
sudo apt-get install -y --no-install-recommends \
    libicu67 \
    libssl1.1

Tip:
If libicu67 or libssl1.1 are missing, you may need a Debian snapshot repository:

SNAPSHOT_DATE=20220328T000000Z
echo "deb [trusted=yes] http://snapshot.debian.org/archive/debian/${SNAPSHOT_DATE} bullseye main" \
    | sudo tee /etc/apt/sources.list.d/debian-archive.list
sudo apt-get -o Acquire::Check-Valid-Until=false update

Install the required library using Homebrew:

brew install mono-libgdiplus

Ensure libgdiplus is installed if you experience issues when rendering images or image-based documents.