Thanks for your question and for including the settings of your rule. I assume this is a “Taxonomy” rule for the “Tags” taxonomy in the IPTC/EXIF settings tab; is that right?
The rule looks good. I assume the “EXIF/Template Value” text box is empty, “Priority” is IPTC, and “Status” is Active; are those right? In particular, make sure Status is Active.
You can try setting “Existing Text” to “Replace” if that makes sense in your application.
I had a quick look at your site (beautiful) and two of the images in the “Cruise between the Saronic Gulf and the Cyclades” page, toern-2020-09-23-17-39-49.jpg and toern-2020-09-21-18-12-06.jpg. Neither of those images have IPTC keywords. In fact, they have not IPTC metadata at all. Perhaps the metadata has been removed by an image compression plugin or some other means.
If you can post a link to one or more images that you know have keywords present I can investigate further. I will leave this topic unresolved for now. Any additional details or examples you can provide will be helpful. Thanks for your interest in the plugin.
Thread Starter
elotse
(@elotse)
Hello David, thanks for the quick reply.
With the reference to the optimization plugin, I was able to solve the problem.
I was currently using EWWW and had used the “Remove meta data” option. After removing this option and using the Replace Existing Text in the Media Library Assistant settings, it works best.
The strange thing was that when using EWWW some IPTC data was taken over. I think this depends on the order of editing!
But now I have to find a solution for the optimization.
The metadata must be removed after the upload as this has a significant influence on the file size, especially with small images.
Alternatively, it would be good if the metadata is retained in the original image with the optimization plugin.
If you or another reader know a solution to this, I would be very grateful
Thanks again
Klaus
Thanks for your update with the good news.
You wrote “Alternatively, it would be good if the metadata is retained in the original image with the optimization plugin.”
I understand that to mean you would like to retain the metadata in the original image file but remove it from the intermediate size images (thumbnail, small, etc.). I tested a few popular “regenerate thumbnails” plugins and found that all of them preserve the embedded metadata:
Real Thumbnail Generator (Free)
Regenerate Thumbnails
reGenerate Thumbnails Advanced
WordPress Real Thumbnail Generator
I did find one older plugin that completely strips metadata from intermediate size images, leaving the original intact:
Force Regenerate Thumbnails
This plugin is not actively maintained, but seems to work fine with WP 5.7. You can use it on individual files, with the Media/Library (list view) Bulk Actions and it has a “Regenerate All Thumbnails” option on the Tools/Force Regenerate Thumbnails page. I do not endorse it, but you can try it out at your own risk.
I will contact the authors of Real Thumbnail Generator and suggest that they investigate adding some features for removing embedded metadata from the intermediate size files.
I am marking this topic resolved, but please update it if you have any remaining problems mapping your metadata with MLA rules. If you find a good solution to the metadata removal task, post an update here and share it with other MLA users. Thanks!
Thread Starter
elotse
(@elotse)
Hello David,
Thank you for your quick and extensive support.
I have now chosen a solution, or rather a work flow, with which I am satisfied.
Step 1) For Data reduction I am using the Compress JPEG & PNG images plug-in.
It is necessary that the option “Do not automatically compress new images” is used.
Step 2) Upload the images to the wp media library
Step 3) In the media library, manually select the images to be compressed.
Regards Klaus
