render

Sep 24, 2026

Changes in this version

+ const BackendCanvas

+ const FontBlack

+ const FontBold

+ const FontExtraBold

+ const FontExtraLight

+ const FontItalic

+ const FontLight

+ const FontMedium

+ const FontRegular

+ const FontSemiBold

+ const FontThin

+ var RegisterBackend = drawing.RegisterBackend

+ var RegisteredBackends = drawing.RegisteredBackends

+ func RegisterFallbackFontFactory(register func(data []byte, family string, style FontStyle) error, ...)

+ func RegisterFontEngineFactory(fn func(doc *parser.Document) FontEngine)

+ func RegisterOffscreenSurfaceFactory(fn func(width, height float64, resolution geom.Resolution) OffscreenSurface)

+ func RegisterPDFDocumentFactory(fn func(w io.Writer, options PDFOptions) (PDFDocument, error))

+ func RegisterSVGSceneFactory(fn func(data []byte) (SVGScene, error))

+ func RegisterVectorSurfaceFactory(fn func(width, height float64, draw func(DrawContext)) VectorSurface)

+ type Backend = drawing.Backend

+ func NewBackend(name string, width, height float64, resolution geom.Resolution) (Backend, error)

+ type BackendFactory = drawing.BackendFactory

type Document

+ func (p *Document) RasterizePage(page *parser.Page, backendName string, resolution geom.Resolution) (*image.RGBA, error)

+ func (p *Document) RemoveFallbackFont(family string)

+ type DrawContext = drawing.DrawContext

+ type EncodedImage struct

+ Data []byte

+ Format string

+ func NewEncodedImage(format string, data []byte) *EncodedImage

+ func (e *EncodedImage) At(x, y int) color.Color

+ func (e *EncodedImage) Bounds() image.Rectangle

+ func (e *EncodedImage) CanvasCached() any

+ func (e *EncodedImage) ColorModel() color.Model

+ func (e *EncodedImage) Image() (image.Image, error)

+ func (e *EncodedImage) SetCanvasCached(v any)

+ func (e *EncodedImage) Weight() int64

+ type FontEngine = drawing.FontEngine

+ func NewFontEngine(doc *parser.Document) FontEngine

+ type FontFace = drawing.FontFace

+ type FontFamily = drawing.FontFamily

+ type FontStyle = drawing.FontStyle

+ type OffscreenSurface interface

+ Raster func() *image.RGBA

+ type PDFDocument = drawing.PDFDocument

+ func NewPDFDocument(w io.Writer, options PDFOptions) (PDFDocument, error)

+ type PDFOptions = drawing.PDFOptions

+ type SVGScene = drawing.SVGScene

+ type TextRun = drawing.TextRun

+ type VectorSurface = drawing.VectorSurface

Sep 19, 2026

Changes in this version

+ func FallbackFontData(family string) ([]byte, bool)

+ func RegisterFallbackFont(data []byte, family string, style canvas.FontStyle) error

type Document

+ func (p *Document) UseFallbackFont(family string) error

type Fonts

+ func (p *Fonts) UseFallbackFont(family string) error

Sep 15, 2026

Changes in this version

+ func Rasterize(c *canvas.Canvas, resolution canvas.Resolution, colorSpace canvas.ColorSpace) *image.RGBA

type Document

+ func NewDocumentWithDPI(background color.Color, doc *parser.Document, dpi canvas.Resolution) *Document

Sep 10, 2026

Changes in this version

type Document

+ func (p *Document) AddFallbackFont(data []byte, family string, style canvas.FontStyle) error

+ func (p *Document) FallbackFontFamily(id models.StRefID) string

+ func (p *Document) HasLoadedEmbeddedFont(id models.StRefID) bool

+ func (p *Document) TextLayouts(page *parser.Page) []TextLayout

type Fonts

+ func (p *Fonts) AddFallbackFont(data []byte, family string, style canvas.FontStyle) error

+ func (p *Fonts) FallbackFontFamily(id models.StRefID) string

+ func (p *Fonts) HasLoadedEmbeddedFont(id models.StRefID) bool

+ type GlyphLayout struct

+ Angle float64

+ Height float64

+ Text string

+ Width float64

+ X float64

+ Y float64

+ type TextLayout struct

+ Bold bool

+ CharDirection int

+ Font uint64

+ Glyphs []GlyphLayout

+ Height float64

+ Italic bool

+ ReadDirection int

+ Size float64

+ Text string

+ Weight int

+ Width float64

+ X float64

+ Y float64

Sep 2, 2026

Changes in this version

type CTColor

+ Gradient canvas.Gradient

type Document

+ func (p *Document) Composite(ctx *canvas.Context, object models.CompositeObject, dp *models.DrawParam, ...)

Jan 14, 2026

Changes in this version

+ type CTColor struct

+ AxialShd canvas.Gradient

+ Value *color.RGBA

+ type Document struct

+ func NewDocument(background color.Color, doc *parser.Document) *Document

+ func (p *Document) Annot(ctx *canvas.Context, annot *models.Annot, pb models.StBox)

+ func (p *Document) Draw(ctx *canvas.Context, page *parser.Page) error

+ func (p *Document) Image(ctx *canvas.Context, object models.ImageObject, dp *models.DrawParam, ...)

+ func (p *Document) Layer(ctx *canvas.Context, layer *models.Layer, pb models.StBox)

+ func (p *Document) Page(page *parser.Page) (*canvas.Canvas, error)

+ func (p *Document) PageContent(ctx *canvas.Context, page *parser.Page, seal bool)

+ func (p *Document) Path(ctx *canvas.Context, object models.PathObject, dp *models.DrawParam, ...)

+ func (p *Document) Seal(ctx *canvas.Context, info *parser.SealInfo, pb models.StBox) error

+ func (p *Document) Template(ctx *canvas.Context, template models.Template, pb models.StBox)

+ func (p *Document) Text(ctx *canvas.Context, object models.TextObject, dp *models.DrawParam, ...)

+ type Fonts struct

+ Fonts map[models.StRefID]*canvas.FontFamily

+ func NewFonts(doc *parser.Document) *Fonts

+ func (p *Fonts) LoadFont(id models.StRefID) (*canvas.FontFamily, error)