Documentation/AOO4 User Guides/Draw Guide/Editing Pictures Raster Graphics/Exporting Graphics/Exporting as a Raster Graphic

Apache OpenOffice 4.1 Draw Guide

Editing Pictures (Raster Graphics)

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• Introduction
• Importing Raster and Vector Graphics
  • Link or Embed?
  • Scanning
  • Pasting from the Clipboard
  • Dragging and Dropping
  • Inserting from a File
• Exporting Graphics
  • Exporting the Entire File
  • Exporting Single Objects
  • Exporting as a Vector Graphic
  • Exporting as a Raster Graphic
• Modifying Raster Object Properties
• The Picture (Editing) Toolbar and Graphic Pane
• Cropping
• The Graphic Filter Toolbar
• Changing Colors Using the Color Replacer
  • Practical Example: Changing Wrong Colors to Transparency
  • Effect of the Tolerance Parameter
  • Color Depth
    • Reducing color depth
• Conversion
  • Convert to a Contoured Image
  • Convert to a Polygon
    • Number of Colors
    • Point Reduction
    • Fill Holes
  • Convert to Bitmap
• Print Options with Raster Graphics

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Exporting as a Raster Graphic

The choice of export formats for raster graphics is large enough to support most other applications. In case of doubt, test different formats to see which gives the best results; some programs behave differently depending on the image formats they import.

After entering a name for the exported file and selecting the file format, you may be able to set options for the exported image—compression, color format, and version of Metafile—depending on the format you choose. Some examples of the various option dialogs are shown in Figure 125.

Where the export dialog allows you to specify the image resolution, this does not affect the number of raster points in the image. Rather, it inserts information into the picture that tells other programs the dimensions to use when displaying the image. This means that, among other things, missing raster points can be introduced when the graphic is opened in another program.

Figure 125: Adjusting format specific properties prior to export

The actual number of pixels used is determined by the screen resolution set up by the operating system, and the Drawing scale factor set in Tools → Options → OpenOffice Draw → General.

Embedded raster graphics, or objects that have been converted to a bitmap or Metafile (from the context menu Convert → To Bitmap / To Metafile), may subsequently be saved as a picture; from the context menu, choose Save as Picture. This saves the picture without Draw-specific additions such as text elements, borders, or shadows, and without the possibility of setting any of the options available when exporting.

Draw objects can easily be imported into Writer, Calc, or Impress documents. For objects often used, this is most easily done by storing them in the Gallery or using the clipboard. Writer and Calc do not possess the same range of tools as Draw. So it makes sense to use Draw to produce a complex drawing, and then to copy it into other AOO applications. A link to single drawing objects is not possible, but you can incorporate Draw documents in the other modules as linked OLE objects.

To avoid problems when scaling Draw objects containing text after importing them into Writer, convert the object to a polygon before storing it in the Gallery or copying it to the clipboard. See “Convert to a Polygon”.