public class PDFTranscoder extends AbstractFOPTranscoder implements org.apache.avalon.framework.configuration.Configurable
Two transcoding hints (KEY_WIDTH
and
KEY_HEIGHT
) can be used to respectively specify the image
width and the image height. If only one of these keys is specified,
the transcoder preserves the aspect ratio of the original image.
The KEY_BACKGROUND_COLOR
defines the background color
to use for opaque image formats, or the background color that may
be used for image formats that support alpha channel.
The KEY_AOI
represents the area of interest to paint
in device space.
Three additional transcoding hints that act on the SVG processor can be specified:
KEY_LANGUAGE
to set the default language to use (may be
used by a <switch> SVG element for example),
KEY_USER_STYLESHEET_URI
to fix the URI of a user
stylesheet, and KEY_PIXEL_TO_MM
to specify the pixel to
millimeter conversion factor.
KEY_AUTO_FONTS
to disable the auto-detection of fonts installed in the system.
The PDF Transcoder cannot use AWT's font subsystem and that's why the fonts have to be
configured differently. By default, font auto-detection is enabled to match the behaviour
of the other transcoders, but this may be associated with a price in the form of a small
performance penalty. If font auto-detection is not desired, it can be disable using this key.
AbstractFOPTranscoder.FOPErrorHandler, AbstractFOPTranscoder.FOPTranscoderUserAgent
Modifier and Type | Field and Description |
---|---|
protected PDFDocumentGraphics2D |
graphics
Graphics2D instance that is used to paint to
|
KEY_AUTO_FONTS, KEY_DEVICE_RESOLUTION, KEY_STROKE_TEXT, userAgent, VALUE_FORMAT_OFF, VALUE_FORMAT_ON
builder, ctx, curAOI, curTxf, DEFAULT_ALLOWED_SCRIPT_TYPES, DEFAULT_DEFAULT_FONT_FAMILY, height, KEY_ALLOWED_SCRIPT_TYPES, KEY_ALTERNATE_STYLESHEET, KEY_AOI, KEY_CONSTRAIN_SCRIPT_ORIGIN, KEY_DEFAULT_FONT_FAMILY, KEY_EXECUTE_ONLOAD, KEY_HEIGHT, KEY_LANGUAGE, KEY_MAX_HEIGHT, KEY_MAX_WIDTH, KEY_MEDIA, KEY_PIXEL_TO_MM, KEY_PIXEL_UNIT_TO_MILLIMETER, KEY_SNAPSHOT_TIME, KEY_USER_STYLESHEET_URI, KEY_WIDTH, root, width
Constructor and Description |
---|
PDFTranscoder()
Constructs a new
PDFTranscoder . |
Modifier and Type | Method and Description |
---|---|
protected org.apache.batik.bridge.BridgeContext |
createBridgeContext() |
org.apache.batik.bridge.BridgeContext |
createBridgeContext(java.lang.String version) |
protected org.apache.batik.bridge.UserAgent |
createUserAgent()
Creates and returns the default user agent for this transcoder.
|
protected void |
transcode(org.w3c.dom.Document document,
java.lang.String uri,
org.apache.batik.transcoder.TranscoderOutput output)
Transcodes the specified Document as an image in the specified output.
|
configure, createDocumentFactory, getAutoFontsDefault, getDeviceResolution, getEffectiveConfiguration, getImageManager, getImageSessionContext, getLogger, isTextStroked, setEntityResolver, setLogger, setupImageInfrastructure
createBridgeContext, getCanvasGraphicsNode, setImageSize, transcode
addTranscodingHint, getErrorHandler, getTranscodingHints, removeTranscodingHint, setErrorHandler, setTranscodingHints, setTranscodingHints
protected PDFDocumentGraphics2D graphics
public PDFTranscoder()
PDFTranscoder
.protected org.apache.batik.bridge.UserAgent createUserAgent()
createUserAgent
in class AbstractFOPTranscoder
protected void transcode(org.w3c.dom.Document document, java.lang.String uri, org.apache.batik.transcoder.TranscoderOutput output) throws org.apache.batik.transcoder.TranscoderException
transcode
in class org.apache.batik.transcoder.SVGAbstractTranscoder
document
- the document to transcodeuri
- the uri of the document or null if anyoutput
- the ouput where to transcodeorg.apache.batik.transcoder.TranscoderException
- if an error occured while transcodingprotected org.apache.batik.bridge.BridgeContext createBridgeContext()
createBridgeContext
in class org.apache.batik.transcoder.SVGAbstractTranscoder
public org.apache.batik.bridge.BridgeContext createBridgeContext(java.lang.String version)
createBridgeContext
in class org.apache.batik.transcoder.SVGAbstractTranscoder
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