# phpman > man > Font::TTF::EBDT(3pm)

## NAME
    [Font::TTF::EBDT](https://www.chedong.com/phpMan.php/perldoc/Font%3A%3ATTF%3A%3AEBDT/markdown) - Embeeded Bitmap Data Table

## DESCRIPTION
    Contains the metrics and bitmap image data.

## INSTANCE VARIABLES
    Only has 'bitmap' instance variable. It is an array of assosiative array keyed by glyph-id. The
    element is an object which consists of metric information and image data.

    bitmap object

        format  Only 7 is supported.

        height
        width
        horiBearingX
        horiBearingY
        horiAdvance
        vertBearingX
        vertBearingY
        vertAdvance
        imageData

## METHODS
  $t->read
    Reads the embedded bitmap data from the TTF file into memory. This routine should be called
    _after_ {'EBLC'}->read.

  $t->update
    Update EBLC information using EBDT data.

  $t->out($fh)
    Outputs the bitmap data of embedded bitmap for this font.

## BUGS
    Only Format 7 is implemented. XML output is not supported (yet).

## AUTHOR
    NIIBE Yutaka <mailto:<gniibe@fsij.org>>. This was written at the CodeFest Akihabara 2006 hosted by
    FSIJ.

    ?? patch sent with licensing requirements or not?

## LICENSING
    Copyright (c) 1998-2016, SIL International (<http://www.sil.org>)

    This module is released under the terms of the Artistic License 2.0. For details, see the full
    text of the license in the file LICENSE.