Image (canvas)

Absolutely positioned image. Both w and h are required — canvas images do not auto-size.

The image must be declared in assets before use, with a src file path or bytes you load on the engine (see Installation).

Attributes

Attribute	Type	Default	Description
name	string	—	Required. Asset name declared in assets
x	signed pt	—	X position (or offset from anchor)
y	signed pt	—	Y position (or offset from anchor)
w	pt	—	Required. Width
h	pt	—	Required. Height
anchor	string	—	Reference point

Either anchor or both x and y must be provided.

Logo on every page (top-right corner)

XML

<lpdf version="1">
  <assets>
    <image name="logo" src="logo.png"/>
  </assets>
  <document size="letter" margin="48pt">
    <section>
      <layout>
        <text>Main content</text>
      </layout>
      <canvas>
        <layer page="each">
          <img name="logo" anchor="top-right" x="-18pt" y="18pt" w="80pt" h="24pt"/>
        </layer>
      </canvas>
    </section>
  </document>
</lpdf>

Node.js

L.document({ size: 'letter', margin: '48pt', assets: { images: [{ name: 'logo', src: 'logo.png' }] } }, [
    L.section(NoAttr, [
        L.layout(NoAttr, [
            L.text(NoAttr, ['Main content']),
        ]),
        L.canvas(NoAttr, [
            L.layer({ page: 'each' }, [
                L.imgAt({ name: 'logo', anchor: 'top-right', x: '-18pt', y: '18pt', w: '80pt', h: '24pt' }),
            ]),
        ]),
    ]),
])

Python

L.document(DocumentAttr(size='letter', margin='48pt', assets=DocumentAssets(images=[ImageAttr(name='logo', src='logo.png')])), [
    L.section(NoAttr, [
        L.layout(NoAttr, [
            L.text(NoAttr, ['Main content'])
        ]),
        L.canvas(NoAttr, [
            L.layer(LayerAttr(page='each'), [
                L.img_at(CanvasImgAttr(name='logo', anchor='top-right', x='-18pt', y='18pt', w='80pt', h='24pt'))
            ])
        ])
    ])
])

PHP

L::document(new DocumentAttr(size: 'letter', margin: '48pt', assets: new DocumentAssets(images: [new ImageAttr(name: 'logo', src: 'logo.png')])), [
    L::section(NoAttr, [
        L::layout(NoAttr, [
            L::text(NoAttr, ['Main content']),
        ]),
        L::canvas(NoAttr, [
            L::layer(new LayerAttr(page: 'each'), [
                L::imgAt(new CanvasImgAttr(name: 'logo', anchor: 'top-right', x: '-18pt', y: '18pt', w: '80pt', h: '24pt')),
            ]),
        ]),
    ]),
])

.NET

L.Document(new() { Size = "letter", Margin = "48pt", Assets = new DocumentAssets(Images: [new ImageAttr { Name = "logo", Src = "logo.png" }]) }, [
    L.Section(NoAttr, [
        L.Layout(NoAttr, [
            L.Text(NoAttr, ["Main content"]),
        ]),
        L.Canvas(NoAttr, [
            L.Layer(new() { Page = "each" }, [
                L.ImgAt(new() { Name = "logo", Anchor = "top-right", X = "-18pt", Y = "18pt", W = "80pt", H = "24pt" }),
            ]),
        ]),
    ]),
])

Centered watermark image

XML

<canvas>
  <layer page="each" opacity="0.08">
    <img name="watermark" anchor="center" w="300pt" h="300pt"/>
  </layer>
</canvas>

Node.js

L.canvas(NoAttr, [
    L.layer({ page: 'each', opacity: '0.08' }, [
        L.imgAt({ name: 'watermark', anchor: 'center', w: '300pt', h: '300pt' }),
    ]),
])

Python

L.canvas(NoAttr, [
    L.layer(LayerAttr(page='each', opacity='0.08'), [
        L.img_at(CanvasImgAttr(name='watermark', anchor='center', w='300pt', h='300pt'))
    ])
])

PHP

L::canvas(NoAttr, [
    L::layer(new LayerAttr(page: 'each', opacity: '0.08'), [
        L::imgAt(new CanvasImgAttr(name: 'watermark', anchor: 'center', w: '300pt', h: '300pt')),
    ]),
])

.NET

L.Canvas(NoAttr, [
    L.Layer(new() { Page = "each", Opacity = "0.08" }, [
        L.ImgAt(new() { Name = "watermark", Anchor = "center", W = "300pt", H = "300pt" }),
    ]),
])