1Image::ExifTool::WritePUNsGe(r3)Contributed Perl DocumenItmaatgieo:n:ExifTool::WritePNG(3)
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6 Image::ExifTool::WritePNG.pl - Write PNG meta information
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9 These routines are autoloaded by Image::ExifTool::PNG.
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12 This file contains routines to write PNG metadata.
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15 Compress::Zlib is required to write compressed text.
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17 Existing text tags are always rewritten in their original form
18 (compressed zTXt, uncompressed tEXt or international iTXt), so pre-
19 existing compressed information can only be modified if Compress::Zlib
20 is available.
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22 Newly created textual information is written in uncompressed tEXt form
23 by default, or as compressed zTXt if the Compress option is used and
24 Compress::Zlib is available (but only if the resulting compressed data
25 is smaller than the original text, which isn't always the case for
26 short text strings).
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29 Copyright 2003-2023, Phil Harvey (philharvey66 at gmail.com)
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31 This library is free software; you can redistribute it and/or modify it
32 under the same terms as Perl itself.
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35 Image::ExifTool::PNG(3pm), Image::ExifTool(3pm)
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39perl v5.36.1 2023-11-21 Image::ExifTool::WritePNG(3)