Hi there, long time since I have posted here but I have a question that is causing me trouble. I am using PHP’s Image Magick functions to create a thumbnail from a pdf file. The problem is that the white pdf background is being rendered transparently.
Here is my code:
$thumbnail = new Imagick($copy_path);
$thumbnail->thumbnailImage( $_POST[thumb_width], 0 );
The image is saved in png format. I have also tried jpeg but that gives a black background.
I have also tried inserting this line in various places:
$thumbnail->setImageBackgroundColor( new ImagickPixel( 'white' ) );
Is anybody able to shed any light on this for me? Thanks
Why are you trying to make a 0-height image?
It’s not very well documented on the PHP site, but if you set any parameter to 0 then it sizes the image proportionally using the parameter that you have set.
I do not use pdf or Imagick much but looking on the forum to get a white backgroung try adding your background then flatten the image.
Checking out the php imagick pages there is this piece of code in the Imagick::flattenImages section that may help:
//Note that the function returns an Imagick object and does not modify the existing object. Below is my code for converting a PNG with transparency into a JPG with a background color. This code illustrates the difference.
$im = new Imagick('image.png');
$im->flattenImages(); // This does not do anything.
$im = $im->flattenImages(); // Use this instead.
As you say the documentation is not very good and I do not see it improving.
That’s fantastic. Solved the problem. Thanks!