eZ publish EXIF stripping followup

It's been 2 weeks since the stripping of EXIF data was put into place on the willow site. Last friday a redesign up uploaded and as part of this update I added the EXIF stripping to all the images on the site.

The following table shows how these changes have effected the size of downloads:

Week / Action
Bytes Transfered Sessions Bytes / Session
Week 1 - no image changes 2.50 GB 6,969.00 376.45 KB
Week 2 - striping EXIF data from thumbnails 1.81 GB 7,459.00 254.95 KB
Week 3 - striping EXIF data from all site images (minor design changes) 992.98 MB 8,459.00 120.20 KB

As the number of sessions has increased over the period I've used the Bytes/ Session to calculate that stripping the EXIF data from all images has resulted in a saving of approximately 30% (this figure is likely to be effected by the new lighter site design).

These changes have resulted in the site loading much quicker, especially the collection pages that contain a lot of thumbnails.

Those looking for others reason to strip EXIF data should read about this "incident", that resulted in this advisory.


  1. Would the filtering used for this work for GD too?

    Apologies in advance for being lazy :)

  2. Hi Paul

    I've had a quick look at GD but can't see reference to any functions that would do this.

    I did come across one post that suggested that GD doesn't copy EXIF data when making image variations.



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