Convert Image All 6.8

Convert Image All v3.8 changes:

Fixed coding problem dealing with animated images.

Convert Image All v3.7 changes:

Fixed problem where thumbnails which were created from transparent .png images were converted with black backgrounds. Now these images are flattened and the transparent background converted to white.

Convert Image All v3.6 changes:

Fixed coding error.

Convert Image All v3.5 changes:

Added Env Path to Options page. This allows setting the ImageMagick environment path.

Convert Image All v3.4 changes:

Variables were declared in incorrect location.

Convert Image All v3.3 changes:

Added code which will add the image extension to the filename.

Convert Image All v3.2 changes:

1) Removed limitation where hot linked images needed to have image extension.

2) Fixed issue dealing with user_id of associated with attachment.

Convert Image All v3.1 changes:

Fixed minor issue with regex. Multiple hot linked images on same line were skipped.

Convert Image All v3.0 changes:

Added code to remove any characters after the filename extension.

Convert Image All v2.9 changes:

Improved code.