Hi Ryan, I have an issue when I try to upload PNG files from JCE Image Manager Extended : after upload, black squares are added to the PNG file and transparency is not kept. This issue doesn't occurs with the default Joomla Media Manager (com_media) I've attached two files to this post : the original and the corrupt one. I tried to change server configuration (tested on PHP 7.3, 7.4, 8.0) I also tried to disable use of Imagick or GD in JCE configuration, but without success... GD and imagick are installed on the server

gd
GD Support	enabled
GD Version	bundled (2.1.0 compatible)
FreeType Support	enabled
FreeType Linkage	with freetype
FreeType Version	2.8.0
GIF Read Support	enabled
GIF Create Support	enabled
JPEG Support	enabled
libJPEG Version	6b
PNG Support	enabled
libPNG Version	1.5.13
WBMP Support	enabled
XPM Support	enabled
libXpm Version	30411
XBM Support	enabled
WebP Support	enabled
BMP Support	enabled
TGA Read Support	enabled
Directive	Local Value	Master Value
gd.jpeg_ignore_warning	1	1

Version return code is 0
Version: ImageMagick 6.9.10-68 Q16 x86_64 2021-02-24 https://imagemagick.org
Copyright: © 1999-2019 ImageMagick Studio LLC
License: https://imagemagick.org/script/license.php
Features: Cipher DPC Modules OpenMP(3.1)
Delegates (built-in): bzlib cairo fontconfig freetype gslib jng jp2 jpeg lcms ltdl lzma openexr pangocairo png ps rsvg tiff wmf x xml zlib

Thank you

Hi Ryan,

Are you performing any processing on the image, like resizing or Remove EXIF?

No

I'm not able to reproduce with your image as an example too ...

I'll assume that it's a bug from my Photoshop.

Thanks for the quick reply !

Hello,
i have the same issue, i need to upload my png's via sfpt because transparencies are made white and i get also black blocks as mentioned above. Any further ideas on this?

Hello,

You have to "play" with Photoshop parameters when saving your PNG.
For e.g. try to Save as... PNG ... Large File Size OR Medium File Size OR Minimal File Size.

Don't forget to rename your file when uploading.

Also, you can use the Joomla Media Manager to upload the file without issues.