1.9.8 - rotation on thumbnail differs from the view

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moropus
Posts: 46
Joined: Thu May 22, 2025 3:04 pm

1.9.8 - rotation on thumbnail differs from the view

Post by moropus »

XnView: MP 1.9.8 - 64 bit
OS: Windows 10 64bit

I've got an image that is incorrectly viewed as thumbnail in Browser. It has correct thumbnail in Windows Explorer and it is shown correctly in View, but thumbnail in Browser has wrong rotation.

To reproduce:
1. Open attached image.jpg
2. Open Browser

Actual behaviour (bug):
- thumbnail in Browser is horizontal

Expected behaviour:
- thumbnail is vertical
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User avatar
user0
XnThusiast
Posts: 2826
Joined: Sat May 09, 2015 9:37 am

Re: 1.9.8 - rotation on thumbnail differs from the view

Post by user0 »

your JPEG has 2 EXIF Orientation tags for the:
- main image (1 - Horizontal (normal)) AND
- embedded thumbnail (6 - Rotate 90 CW)

some apps ignore orientation tag of embedded thumbnail
user0 wrote: Thu Dec 11, 2025 6:37 am you have to fix your files manually
1. select file(s)
2. fix embedded thumbnail
  • rotate
    - press 'EXIF thumbnails - Rotate 90 left' (OR right) few times in Metadata > EXIF Thumbnail

    OR
  • rebuild
    - press 'EXIF thumbnails - Rebuild' in Metadata > EXIF Thumbnail

    OR
  • delete
    - press Clean.. and select 'EXIF thumbnail' in Metadata menu
moropus
Posts: 46
Joined: Thu May 22, 2025 3:04 pm

Re: 1.9.8 - rotation on thumbnail differs from the view

Post by moropus »

Doesn't the viewer need to be consistent in displaying files? For me current behavior is not obvious.