# Apache™ FOP Development: SVG Issues

$Revision: 1298724 $

See also SVG User Documentation for more information.

# Examples

These examples illustrate a number of issues relating to conversion to PDF:

SVG to PDF examples
| svg file | png file | pdf result
--- | --- | --- | ---
images | images.svg | images.png | images.pdf
svg linking | link.svg | link.png | link.pdf
gradients and patterns | paints.svg | paints.png | paints.pdf
various text and effects on text | text.svg | text.png | text.pdf
transparent objects | transparency.svg | transparency.png | transparency.pdf

As can be seen most of the specific issues are handled.

You will need Acrobat 5.0 to see transparency.

XSL:FO to PDF examples
| fo file | pdf result
--- | --- | ---
embedding svg | embedding.fo | embedding.fo.pdf

# Developer Notes

For most output formats in FOP the SVG is simply drawn into an image with Batik. For PDF there are a set of classes to handle drawing the GVT (Graphic Vector Toolkit) into PDF markup.

## Classes

These are the relevant classes, found in the package org.apache.fop.svg :

- PDFGraphics2D
  used for drawing onto a Graphics2D into an existing pdf document, used internally to draw the svg.
- PDFDocumentGraphics2D
  used to create a pdf document and inherits from PDFGraphics2D to do the rest of the drawing. Used by the transcoder to create a standalone pdf document from an svg. Can be used independantly the same as any Graphics2D.
- PDFTranscoder
  used by Batik to transcode an svg document into a standalone pdf, via PDFDocumentGraphics2D.

## Ideas

Batik can convert ttf to svg font. This svg font could be converted into a pdf stroked font (type 3 font).