PDF± not only let you view PDF documents, but also let you manipulate PDF files easily and efficiently. For viewing PDF files, PDF± let you Zoom In and Zoom Out with the too...展开

PDF± not only let you view PDF documents, but also let you manipulate PDF files easily and efficiently. For viewing PDF files, PDF± let you Zoom In and Zoom Out with the toolbar button '+' and '-.' It also let you 'Zoom to Fit' or view in 'Actual Size' with the View menu. PDF± let you navigate pa…收起

Drag and Drop support for merge PDF files. Just drag and drop one or multiple PDF files to the merge window to merge all the files to one.