1PDF::Builder::Resource:U:sXeOrbjCeocntt:r:iPIbDmuFat:ge:edB:u:PiGelIrdFle(r3D:)o:cRuemseonutractei:o:nXObject::Image::GIF(3)
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6 PDF::Builder::Resource::XObject::Image::GIF - support routines for GIF
7 image library. Inherits from PDF::Builder::Resource::XObject::Image
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10 GIF87a and GIF89a headers are supported. The Image block (x2C) is
11 supported.
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13 The Graphic Control Extension block (x21 + xF9) is supported for
14 transparency control. Animation is not supported.
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16 The Comment Extension block (x21 + xFE), Plain Text Extension block
17 (x21 + x01), and Application Extension block (x21 + xFF) are read, but
18 ignored. Any other block or Extension block will be flagged as an
19 error.
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21 If given, Local Color Tables are read and used, supposedly permitting
22 more than 256 colors to be used overall in the image (despite the 8 bit
23 color table depth).
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25 A fairly thorough description of the GIF format may be found in
26 <http://giflib.sourceforge.net/whatsinagif/bits_and_bytes.html>.
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28 Options
29 -notrans
30 When defined and not 0, "-notrans" suppresses the use of
31 transparency if such is defined in the GIF file.
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33 -multi
34 When defined and not 0, "-multi" continues processing past the end
35 of the first Image Block. The old behavior, which is now the
36 default, is to stop processing at the end of the first Image Block.
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40perl v5.34.0 PD2F0:2:1B-u0i7l-d2e2r::Resource::XObject::Image::GIF(3)