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Mart1n

Retention of full exif data after paint.net edit

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I am wondering hos feasible it would be for paint.net to retain ALL the exif data that is to be found on the input file before editing

 

At present the exif item "USER COMMENT"  is populated by my panorama stitching software to hold field of view and vertical offset information to be used when the jpg file is converted to html for publication. This field is written back by paint.net but in a format not usable for this purpose

 

Also, the section of the exif data known as XMP data (application specific exif addons) is appended to images by several apps including my stitching app to include the full dimensions and projection type and cropping data and this is used by social media repositories such as Facebook to decide how to display images. This data is completely deleted by paint.net updates

 

Is this problem one that can easily be addressed in paint.net with an option to retain all exif/xmp data

 

Martin

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4 hours ago, Mart1n said:

I am wondering hos feasible it would be for paint.net to retain ALL the exif data that is to be found on the input file before editing

 

Paint.NET should preserve all the metadata it receives when the file is loaded.

 

4 hours ago, Mart1n said:

Is this problem one that can easily be addressed in paint.net with an option to retain all exif/xmp data

 

The JPEG loading and saving uses the GDI+ library that is built-in to Windows.

Paint.NET does not have any control over what it does with metadata when an image is loaded or saved.

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I thought it ought to be possible even with the caviat that it is not under direct control (see my the original reply above) because I understood that Photoshop and GIMP already had this facility - although I could not say whether it extends to app specific XMP data

 

Martin

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