How can i specify the watermark image?

[ptgamr]

Hi there,

Documentation say: gm("img.png").watermark(brightness, saturation)

I wonder how to specify which image should be added as watermark?

Thanks for any help!

[desigens]

As you can see in GraphicsMagic documentation (http://www.graphicsmagick.org/composite.html) -watermark is just option for powerful composite utility.

I recommend to google with keywords "GraphicsMagic" or "Imagemagick" and to try command line first of all:

gm composite -watermark 50x50 image.jpg watermark.png output.jpg

After that using gm is more simple ;-)

[dimitarkolev]

Can you provide an example... its not that easy to understand the relation between GraphicsMagic and gm and there is no single example about composite and gm.

[madbence]

@ptgamr @dimitarkolev I'm not sure if this is till an issue for you guys, but I create watermarked images with this pattern:

gm(source)
  .command('composite')
  .gravity('SouthEast')
  .out('-geometry', '+20+10') // offset
  .in('watermark.png')
  .stream()
  .pipe(dest);

[dimitarkolev]

10x I'll try this. On Jun 8, 2015 14:19, "Bence Dányi" [email protected] wrote:

@ptgamr https://github.com/ptgamr @dimitarkolev https://github.com/dimitarkolev I'm not sure if this is till an issue for you guys, but I create watermarked images with this pattern:

gm(source) .command('composite') .gravity('SouthEast') .out('-geometry', '+20+10') // offset .in('watermark.png') .stream() .pipe(dest);

— Reply to this email directly or view it on GitHub https://github.com/aheckmann/gm/issues/276#issuecomment-109955651.

[digz6666]

@madbence Thank you it worked! I was trying following way, but didn't know how to specify watermark location.

gm(readStream)
.autoOrient()
.resize(1280, 1024)
.gravity('SouthEast')
.draw('image Over 10,10 0,0 ' + getAppPath() + '/public/img/watermark.png')
.stream('PNG')
.pipe(writeStream);

[damogallagher]

Hi

Is it possible to specify a buffer (e.g. from a file upload) for the watermark instead of the physical file on a server?

Thanks Damien

[Security111588]

gm('./background.jpg')
  .autoOrient()
  .resize(1000, 1000)
  .draw("image Over 100,300 0,0 './logo.png'")
  .write('./img/backgroundwithlogo.png', function(err) {
    if (!err) console.log('done');
  });

this code is worked for me. 100,300 is watermark location. @digz6666