Image::ExifTool::WriteUser3Contributed Perl DocuImage::ExifTool::WritePNG(3pm)
NAME
Image::ExifTool::WritePNG.pl - Write PNG meta information
SYNOPSIS
These routines are autoloaded by Image::ExifTool::PNG.
DESCRIPTION
This file contains routines to write PNG metadata.
NOTES
Compress::Zlib is required to write compressed text.
Existing text tags are always rewritten in their original form
(compressed zTXt, uncompressed tEXt or international iTXt), so pre-
existing compressed information can only be modified if Compress::Zlib
is available.
Newly created textual information is written in uncompressed tEXt form
by default, or as compressed zTXt if the Compress option is used and
Compress::Zlib is available (but only if the resulting compressed data
is smaller than the original text, which isn't always the case for
short text strings).
AUTHOR
Copyright 2003-2023, Phil Harvey (philharvey66 at gmail.com)
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
SEE ALSO
Image::ExifTool::PNG(3pm), Image::ExifTool(3pm)
perl v5.36.0 2023-02-24 Image::ExifTool::WritePNG(3pm)
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