PDFCool Studio - Highest Performance-Cost Ratio in the Market
Used to create, edit, sign, encrypt and convert PDF documents. It supports 17 kinds of page processing functions like merge, replace, rotate PDF page etc and 11 kinds of document processing functions like split, combine, add watermarks and header/footer etc. It allows you to encrypt/decrypt multiple PDF documents and set permissions. It runs in multi-documents mode, and provides as many as 31 kinds of skins.
