When I import a PNG image into Inkscape, it opens a new document. It started doing this a while ago. Before, I could import the image into the document that was already open. Now, every file I import creates a new document. How can I reverse this?

Please:

1. Describe your OS (your computer's Operating System: Mac/Windows/Linux/etc. & version).
2. Describe if Inkscape was newly installed, or upgraded from an earlier version.
3. Describe the version of Inkscape and the installer you used (the file you downloaded from the web: .msi/.exe/.zip/appimage/other, PPA/Snap/Flatpak, dmg/other ). 
4. Describe any special hardware being used, like tablet/stylus, external drives or multiple monitors.
5. Describe any helper/assistive programs or keyboard modifiers (macros, languages, etc.).
6. Describe if your OS has been updated or if other programs have been installed just prior to the issue becoming apparent.

I am experiencing the same problem/change.

OS version: Windows 10.

Inkscape version: Inkscape 1.4 (86a8ad7, 2024-10-11).

There is a setting "SVG import mode" which can be set to "New". It is only supposed to affect svg import not PNG, but seems like 1.4.2 has a bug.  https://gitlab.com/inkscape/inkscape/-/issues/5642

As a temporary workaround open preferences and make sure  "SVG import mode" is set to not "New". My current settings are:

• Ask about linking and scaling when importing bitmap images
• Asky about linking and scaling when importing SVG images
• Bitmap import/open mode: embed
• SVG import mode: Include

Checked the history and the last fix has been backported to 1.4 branch. Should be fixed in next bugfix release 1.4.3  .