Combine PDF files - Merge PDF, Unlock PDF is a simple and fast PDF Combiner to merge or combine pdf, text, and images into one pdf file that can be easily open and shared. The thumbnails of input files are available so you are able to order items easily. This free PDF Combiner is also used to unlock PDF file when its password is known. It helps you quickly remove password of a PDF file. FEATURES OF Combine PDF files - Merge PDF - Easy to select input files and folder to save file - Remove pas