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 internation 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 2003-2014, Phil Harvey (phil at owl.phy.queensu.ca) 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)