Image Manager and PNGs

[180michael]

Hello,

I've tried searching for this but with no luck. Can anyone tell me why png images will not resize in image manager (thumbs) without loosing the transparency to a black canvas? I need to use the image manager for a module I'm working on but every time it copies over the png images they loose their transparency and gain a white border.

I have the GD library installed with support for all formats. GIFs work fine.

cmsms 1.6; Filemanager: 1.0; PHP 5; Apache server on linux.

Thanks!

[180michael]

Update:

I found out that this is actually dependent on the GD library. Take a look at http://www.akemapa.com/2008/07/10/php-gd-resize-transparent-image-png-gif/.

Can this please be implemented in Image Manager's GD class for next release?

[jmcgin51]

please submit a feature request in the Forge for this.  it is more likely to go unnoticed here in the forums

[180michael]

Done.

[Franck]

I think you should have put it in the CMSMS core features request. Image Manager module seems not to be continued.

I also noticed the upload by the image manager of a png file with transparency results in a non-transparent file. Same kind of problem.