Image resizer doesn't preserve EXIF data

[uiii]

Short description of the issue

Image resizer doesn't preserve image's EXIF data (capture date, place, camera info, ...).

Expected behavior

Resized image inherits all the relevant EXIF data.

Actual behavior

The resized image has all the EXIF data removed like a completely new image.

Steps to reproduce the issue

1. Create image field
2. Set maximum dimesions (maybe enable client side resizing)
3. Upload image with EXIF data set
4. Download the uploaded image and compare it's EXIF data with the original one.

Setup/Environment

• ProcessWire version: 3.0.70
• (Optional) PHP version: 5.6

[ryancramerdesign]

As far as I know that info only remains in a non-resized image, but @horst-n would know better than me. I think you'd likely have to disable max dimensions (or set it to refuse images exceeding max dimensions) so that you can retain a copy of the original with the extra data in it.

[uiii]

My intentions is to resize the image on client size before uploading, which works, but the EXIF data are lost. I can't (don't want to) upload the original image.

[Toutouwai]

The client-side resizer includes exif-js which can read the EXIF data from the original, but I don't think it supports writing EXIF data.

Maybe exif-js could be replaced with something like piexifjs which can both read and write.

[horst-n]

I'm not comfortable with clientside resizing. Keeping in mind that this includes hundreds of different devices, I'm also will not go into this field.

[netcarver]

@uiii Hi Richard, this is quite an old issue now. Do you know if it has been taken care of with the client-side resizing options that were added?

[uiii]

@netcarver Hi Steve, could you please give me a link with description of the client-side resizing, I'm not sure if I missed that. Yes it is quite old and I didn't care about this a while, but now it may be relevant again because I will work with a project where I had the issue.

[netcarver]

@uiii The link is here, Richard. However, I now see it pre-dates the version of PW you reported this issue against, so it's probable this is still an issue.

[netcarver]

@uiii Hi Richard. I'm gradually working through old issus with a view to closing those that are fixed or otherwise now invalid. Could you give us an update on the issue? Is it still valid? I'll review this next week and close if there's no further information.

[reminders]

@netcarver set a reminder for Feb 21st 2019

[reminders]

👋 @netcarver, review and close this issue if needed

[netcarver]

Closing as no feedback. @uiii Richard, please post again if needed.