oracular (3) Image::ExifTool::WritePNG.3pm.gz

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 2003-2024, 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)