Getting rid of Thumbnails in JPEG ?

[bpasch]

How can I get rid of the embedded Thumbnail in a JPEG file without loosing the EXIF information?
Reason: XnView uses this thumbnail in its thumbnail view in the browser. However, the thumbnail does not get updated when I modify the image, so it shows the wrong, unmodified view in the browser.
If I could drop the embedded thumbnail then XnView would be forced to create its own from the modified image.

Is there a tool that can do what I want? Could this be made an option in XnView (like save/don't save EXIF/IPTC data)?

[Olivier_G]

There is a better way to handle this within XnView:
Go to Menu:Tools>Options>Browser>Thumbnail
and uncheck "Use embedded thumbnail" (bottom of the page). You will get what you want (I use it as well).

Actually, I am wondering if it should not be the default setting... to avoid misunderstandings of differences between thumbnails and the real image.

Olivier

[helmut]

Olivier describes the way to go.

If you really want to remove the EXIF thumbnail you can open the image in XnView and use "Edit>Metadata>Remove EXIF thumbnail".