Version: (using KDE 4.3.1) Compiler: gcc version 4.3.2 [gcc-4_3-branch revision 141291] (SUSE Linux) OS: Linux Installed from: SuSE RPMs Konqueror opens PDF in new windows instead of new tabs, despite I have configured it to open everything in a new tab.
Works here. Settings->Configure Konqueror->File Associations->application/pdf->Embedding->Show file in embedded viewer
@Stefano: you've to configure to use the embedded viewer.