CleverPDF is a comprehensive PDF web app, which offers 27 PDF tools online for free. It helps users convert PDF to Office, iWork, images and more. Users can also compress PDF, merge or split PDF, rotate PDF, add watermark or numbers to PDF and more. It's completely free, no sign-up is required.
PDF Joiner - This online tool allows you to join several PDF documents into a single file, free of charge.
Clio - Clio provides a full suite of web-based practice management tools targeted specifically at the administrative needs of sole practitioners and small firms.
PDFChef Merge PDF - PDFChef Merge PDF is an online tool that allows you to merge multiple PDf files into one quickly and securely.
MyCase - Practice More, Manage Less.
DocuPUB - DocuPUB is an online file converter, file merger, file compressor, and file resizing tool.
PracticePanther - PracticePanther offers CRM, invoicing, time tracking and communication solutions for law firms.