Edit Existing Image

[Dysan]

Hiya Everybody!

Using the GD Library, is it possible to edit an existing saved image, to include a square and some text?

[NogDog]

Yes, it is.

[Dysan]

How?

[NogDog]

[man]magerectangle/man
[man]imagettftext/man

[Dysan]

I have the following code so far, why can't I see the loaded image?

<?php
imagecreatefrompng  ( "anoncard.png"  );
?>

[bpat1434]

Because you're not capturing the output of the image? You're not sending the proper headers so the data is interpreted as an image of type "image/png"? You're not using the returned image identifier inside of an imagepng() function call?

Those are all reasons you can't see the output of the image.

[NogDog]

More specifically, imagecreatefrompng() does not output anything. It just stores a bunch of image data in memory and returns a resource ID that can be used to reference that data by other image functions. Try looking at the example on the [man]imagecreatefrompng[/man] page.