Closed bitzl closed 3 years ago
PNG 1.2 does not seem to support Exif, but Extension 1.5.0 does. I will consider supporting it. Do you have any use case in the wild?
I'm working on building a photo library web server that will need to be able to extract Exif data from multiple formats including PNG.
PNG support has been committed and will be available in version 0.5.2.
Now, kamadak-exif directly supports PNG files, so the following information is not necessarily needed, but just FYI... Shortly after the commit, img-parts crate was mentioned in another issue. The next version of img-parts will extract the raw Exif data block from a PNG file, and then older kamadak-exif can be used to parse the raw Exif block.
In general, combining kamadak-exif with image container libraries is a basic strategy to read Exif information from image files that are not directly supported by kamadak-exif.
Are there any plans to support reading exif from PNG files (supported since PNG 1.2)? If you are interested, I might be even be able to contribute a PR.