PDF Merge Tools

I am back after a hiatus...Sharing about 2 PDF merging tools. I realised the need to do PDF merging when i had to send a compiled PDF document and what i had were discrete PDF files. The tools are

• Adolix Split and Merge PDF, www.adolix.com/split-merge-pdf/ is a downloadable tool which does merging and splitting both. The tool is easy to use but has a limitation of merging only 5 pdf documents in a single instance. Also, there's no refresh screen option and so if one has to use it next time one has to delete the displayed files using the '-' (minus) button.
  

• Merge PDF, www.mergepdf.net, is an online facility to merge multiple files. The maximum number of files allowed in this case is 10 and each file should be of maximum 5 MB size.