PDF Watermark consists of the programs for adding watermarks on PDF files. This kind of software allows you add watermarks on multiple files in batch, and support to add any text, images as watermarks on PDF files, so that you can protect your copyright and avoid unauthorized use. [...]
Other PDF Tools consists of the programs: Compress PDF File, Export PDF Form Data, Optimize Scanned PDF documents etc. Most of these program features are contained in PDF Editor products, but these "single feature" program's highlight is supporting batch process. [...]
PDF tools with OCR function consists of the programs for converting PDF to other file formats, and the OCR feature is to let you turn the picture of words into the searchable and editable documents. [...]
Pdf split & merge consists of the programs for quickly merging and splitting pdf files, such as merge multiple PDF files into a PDF file, or split a PDF file into multiple PDF files. And this kind of programs usually offers a variety of splitting ways: split by number of pages, by page range, by even pages, by odd pages etc., and it run separately, without Acrobat support. Moreover, generally supports all versions of PDF files, of great stable performance. [...]