4 Sizing

Documents

When rendering PDF documents, you can specify the page size via CSS…

<style  type="text/css">
  @page {
    size: 210mm 297mm;
  }
</style>

Images

The image rendering methods take extra arguments to control the size of the rendered image. The extra arguments are maps containing width or height keys, or both.

render

The render argument is the size of the view port that the document is rendered into. This is equivalent to the dimensions of the browser window for html rendering.

The default value for render is width: 10, height: 10000 (i.e. 10 pixels wide by 10000 pixels high).

autosize

The autosize argument specifies whether to adjust the size of the image to exactly be the rendered content.

The default value for autosize is width: true, height: true.

scale

The scale argument specifies the factor to scale the image by after initial rendering. For example, the value width: 0.5, height: 0.5 produces an image half the size of the original render.

The default value for autosize is null.

resize

The resize argument specifies the adjusted mage after initial rendering. For example, the value width: 200, height: 400 will resize the image to 200 pixels X 400 pixels regardless of the original render size.

(note that resize & scale are mutually exclusive with scale taking precedence).

The default value for resize is null.