Just added two lines at line 545 after:
$this->temp_image = imagecreatetruecolor($tx,$ty);

Here is the code:
imagealphablending( $this->temp_image, false);
imagesavealpha( $this->temp_image, true);

First of all I want to thank you for your great plugin
I have been using it on a project before and it works just fine.

I am currently trying to resize transparent PNGs but I get a black background and the transparency is lost….

Any clue on what to change to allow transparent PNGs resizing ?

public function index() {

$file_path=’1.jpg’;
$this->test($file_path);
}

public function test($file_path) {
$this->load->library(‘image_moo’);
$fonts=’mailrays.ttf’;
$this->image_moo
->load(‘image/’ . $file_path)
->make_watermark_text(“MERGE TARE ?”, ‘fonts/’.$fonts, 20, “#160000″,10)
->resize(700,700)
->watermark(2)
->save_pa(”, ‘_thumb’, TRUE);

return $this->image_moo->errors;
}

The name folder “image” was created in the root.

Enrico Palazzo:

This is not working.
any updates on the transparent PNG issue?

It’s working now. I changed the code on codeigniters forum solution.
I just changed $this->width and $this->height for $tx and $ty
This is how the code should look on lines 555 to 560

$col = $this->_html2rgb($this->background_colour);
$bg = imagecolorallocate($this->temp_image, $col[0], $col[1], $col[2]);
imagealphablending($this->temp_image, false);
imagesavealpha($this->temp_image, true);
$color = imagecolorallocatealpha($this->temp_image, 0, 0, 0, 127);
imagefilledrectangle($this->temp_image, 0, 0, $tx, $ty, $color);