Notice

Please use System.Drawing.Common instead, this is an official fork of mono's system drawing implementation, this project will no longer be maintained.

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System.Drawing for .NET Core, that really work

This is a .Net Core compatible System.Drawing implementation modified from mono project.
Works on windows and linux.

Since 3.0, namespace is replaced to System.DrawingCore, please modify your code after upgrade.

Since 4.0, netstandard 2.0 is required, and code is updated to mono 5.2.0.215.

These system are tested:

• Windows 8.1 64bit
• Ubuntu Server 16.04 LTS 64bit
• Fedora 24 64bit
• CentOS 7.2 64bit

These features should work:

• Open jpg, bmp, ico, png
• Save jpg, bmp, ico, png
• Resize image
• Draw graphics with brush and pen
• Open font and draw string

Known issues:

• #1 Save icon file large than 255x255 will cause arithmetic overflow error

How can I get it work?

On windows, just install package ZKWeb.System.Drawing from nuget.

On Linux, except install package ZKWeb.System.Drawing from nuget, you need install libgdiplus.

• Ubuntu 16.04 and above:
  • apt-get install libgdiplus
  • cd /usr/lib
  • ln -s libgdiplus.so gdiplus.dll
• Fedora 23 and above:
  • dnf install libgdiplus
  • cd /usr/lib64/
  • ln -s libgdiplus.so.0 gdiplus.dll
• CentOS 7 and above:
  • yum install autoconf automake libtool
  • yum install freetype-devel fontconfig libXft-devel
  • yum install libjpeg-turbo-devel libpng-devel giflib-devel libtiff-devel libexif-devel
  • yum install glib2-devel cairo-devel
  • git clone https://github.com/mono/libgdiplus
  • cd libgdiplus
  • ./autogen.sh
  • make
  • make install
  • cd /usr/lib64/
  • ln -s /usr/local/lib/libgdiplus.so gdiplus.dll

Then you should replace all System.Drawing To System.DrawingCore in your code