| メソッド | GD | Imagick2 | Imagick3 | Imlib | IM | NetPBM |
|---|---|---|---|---|---|---|
| _resize() | yes | yes | yes | yes | yes | yes |
| save() | yes | yes | yes | yes | yes | yes |
| display() | yes | yes | yes | yes | yes | yes |
| free() | yes | yes | yes | yes | yes | yes |
| addText() | yes | yes | yes | yes | yes | yes |
| addDropShadow() | - | - | - | - | - | - |
| addBorder() | yes | - | - | - | - | - |
| crop() | yes | yes | yes | yes | yes | yes |
| canvasResize() | - | - | - | - | - | - |
| fitOnCanvas() | - | - | - | - | - | - |
| flip() | yes | yes | yes | yes | yes | yes |
| gamma() | yes | yes | yes | - | yes | yes |
| greyscale() | yes | - | yes | - | yes | yes |
| mirror() | yes | yes | yes | yes | yes | yes |
| normalize() | - | - | - | - | - | - |
| rotate() | yes | yes | yes | yes | yes | yes |