I have merge two PDFs into a single PDF file. When I want to delete the orginial files I can´t because PDF Architects keeps them open, even after I close it. Windows says "The action can´t be completed because the file is open in PDF Architect 5". I have opend and closed PDF Architect several times and doesn´t solve the problem. The only way is by "killing" the task "PDF Architect 5" with Task Manager.
Can you help? This is a deal bracker for me. I merge files and delete the original ones all the time .