Go API
Frontend
Image inclusion

Image inclusion

To include images in your document, a few steps are necessary:

imgfile, err := f.Doc.LoadImageFile("path/to/image.pdf")

to load an image object

type Imagefile struct {
	PageSizes map[int]map[string]map[string]float64
	Format   string
	Filename string
	Box      string
	NumberOfPages int
	ScaleX        float64
	ScaleY        float64
	W             int
	H             int
	PageNumber    int // The requested page number for PDF images (1-based)
}

You can create an image node from this image object with

imgNode := f.Doc.CreateImageNodeFromImagefile(imgfile, 1, "/MediaBox")

Optionally set the width and the height:

imgNode.Width = width
imgNode.Height = height

To show only a part of the image, set its Crop to a region in the units of the image’s natural size, measured from its top left corner: pixels for a bitmap, points of the page box for a PDF page. The region fills the image’s box, and the image is clipped to the box:

type ImageCrop struct {
	X, Y, Width, Height float64
}
imgNode.Crop = &node.ImageCrop{X: 100, Y: 50, Width: 400, Height: 300}

Once you have this image node, put it in a vlist node by calling

vl := node.Vpack(imgNode)

and place it on the page with

p.OutputAt(0, bag.MustSP("297mm"), vl)
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