Cannot insert JPG image in Writer or Impress: "Unknown image format" - LibreOffice 25.2.2 for Linux

[The_Chief]

I can’t insert a screenshot as I’m too new here… but for at least the last two versions of LibreOffice, I’ve been unable to insert ANY image into a Writer document or an Impress presentation. Doesn’t matter if it’s JPG, PNG, BMP… every attempted image results in the same bewildering popup:

Unknown image format

If an existing document already has an image in it, it displays just fine. I just can’t open a new project and insert any image. I’m running Kubuntu Linux 25.04 (although this also happened on Kubuntu 24.10).

PLEASE advise, as I really need to get this fixed. Thank you!

[Wanderer]

@The_Chief

I’ve been unable to insert ANY image

How do you try? Copy/paste or some insert media from the menu?

@The_Chief

Kubuntu Linux 25.04

May have a look at the linked thread. Could be a problem with KDE

LO copy&paste bug - copied content is pasted as image

… and less related, just showing how they made quite disrupting change in Plasma 6 - breaking copy-paste between other apps, too: https://www.reddit.com/r/openSUSE/comments/1bk8a1c/cant_paste_image_into_browser_since_plasma_6/

[The_Chief]

Thanks for the suggestions. If I insert the image from the menu, I get the “unknown file format”. If I try to copy an image from Dolphin file explorer and paste it into the document, it will simply create a write-protected, empty section in the document. As far as the KDE bug goes, it didn’t work in Plasma 5.x either. It’s crazy because I can copy/paste images everywhere else: email, messages, websites… just not LibreOffice. It’s hard, therefore, to point the finger at any other suspect than LibreOffice.

[fpy]

@The_Chief

already has an image in it, it displays just fine

can you then copy/paste this image in the same document ?
to a new document.

please attach here these samples, and a screenshot with the

@The_Chief

bewildering popup

[The_Chief]

Hey there, I know it’s been awhile but I’ve been swamped. To get back to the issue, I opened a document that already had images in it. I right-clicked one and selected “Replace”, then went to find a different JPG image. Once again:

Unknown image format

On a whim, I decided to Copy the document’s existing image; open a new text document and use the Paste function. The image pasted into the new document just fine! The one thing I apparently cannot do is insert any image that isn’t already used in an existing document. That’s bizarre because a JPG is a JPG and a PNG is a PNG.