Feature #1312

Metadata iXTt/zTXt blocks in PNG files

Added by Arnold Wiegert over 1 year ago. Updated about 1 year ago.

Status:NewStart date:05 Sep 2017
Priority:NormalDue date:
Assignee:-% Done:


Category:image format
Target version:1.0


Please make it possible for exiv2 to support these

itxt-german.png (5.4 KB) Arnold Wiegert, 05 Sep 2017 20:11


#1 Updated by Robin Mills over 1 year ago

  • Category set to image format
  • Target version set to 1.0

There is a discussion about this here: http://dev.exiv2.org/boards/3/topics/2944?r=2951#message-2951

I think it will be quite some time before this matter will get attention. Exiv2 supports Exif, IPTC, XMP and ICC metadata in a wide range of image formats. We aim to be a cross-platform, cross-format, image-standards library. As nobody has requested support for "PNG Only" metadata, there does not appear to a strong demand for this feature. For sure, to justify the "business case" to invest effort, I'd want strong evidence that this type of metadata is in common use by major applications such as the Adobe products.

#2 Updated by Robin Mills over 1 year ago

Arnold: I hope you are well. An update on this issue. Another user has raised this: https://github.com/Exiv2/exiv2/issues/147

#3 Updated by Marco Martins about 1 year ago

Hi Arnold, just to let you know I will try to implement this feature. Please continue to follow more about this at https://github.com/Exiv2/exiv2/issues/147

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