phMagick :: Watermarks
It's easy to add watermarks to an image, you can set the postion and opacity of the overlaped image
I've seen a lot of confusion with this function, you need specify 3 files :
- The source and destination in phMagick constructor
- The watermark image (the first parameter in the function) this will be the image that will be placed above the source imace
Function reference
$phMagick->watermark($image_to_use_as_watermark, $watermark_placement, $opacity);
Watermarks examples
From an existing image
$phMagick = &new phMagick('original.png', 'destination.png'); $phMagick->watermark('watermark-source.png', phMagickGravity::Center, 60);
| Original Image | Watermark Source | Result |
 |
 |
 |
Draw text and use it as watermark
//adding text format $format = new phMagickTextObject(); $format->fontSize(10) ->font('Arial.ttf') ->color('#000') ->background('#f0f0f0'); //creating an image that will serve as watermak source $phMagick = &new phMagick('', 'wm_text.png'); $phMagick->fromString(html_entity_decode('© francodacosta.com'), $format); //watermarking image $phMagick = &new phMagick('original.png', 'watermark.png'); $phMagick->watermark('wm_text.png', phMagickGravity::NorthEast, 50);
| Original Image | Watermark Source | Result |
|
 |
 |
A more complex example
$format = new phMagickTextObject(); $format->fontSize(12) ->font('Arial.ttf') ->color('#000') ->background('none') ; $phMagick = &new phMagick('', 'wm_text1.png'); $phMagick->debug = true ; $phMagick->fromString(html_entity_decode('© francodacosta.com '), $format) ->rotate(-45); //rotating text 45 degrees $phMagick = &new phMagick('resize_porp_wh.png', 'watermark3.png'); $phMagick->watermark('wm_text1.png', phMagickGravity::Center,70);
| Original Image | Watermark Source | Result |
|
 |
 |
Hi,
I want to be able to create a watermarked image like above but i don’t want to save it i just want to display it to the screen in the same way gd2 allows you to. also gd2 allows you to display the final image before saving it, using
imagejpeg($image);
is there a way to do this with phMagick….? gd2 is too slow when merging the images but phmagick is much faster, but we don’t want to save the final image. we just want to display it to the screen….
hmmm i have just tried to display the converted image in the browser and it is not seeing the image it just shows a red X…??? i have tried displaying other images and they work fine it’s only the converted images that wont display????
@James,
ImageMagick, and therefor phMagick needs a physical file to exist, so unfortunately the answer is no, you can not work with images directly in memory.
You might eventually create a temporary file and have a cron job remove those files every x minutes