---
name: "Image::ExifTool::WritePNG"
section: "3pm"
platform: "linux"
package: "perl-image-exiftool"
version: "13.55-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Image::ExifTool::WritePNG"
---

# Image::ExifTool::WritePNG(3pm)

Write PNG meta information

## 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 2003-2026, 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::PNG/3pm.md), [**Image::ExifTool**(3pm)](/Image::ExifTool/3pm.md)