Used PDFMergeThing for Mac?
Developer’s Description
iMergePDFs takes a set of different PDF files and merges them into a single print job or PDF file.
Pages can be reordered by dragging and dropping them around the window and when you're happy with things you can produce a single file containing all the pages you have selected.
Explore More

iDocument
Trial version
DbWrench
Trial version
Web Page Grabber
Trial version
DMS NewDocs
Trial version
OpenLink Lite Edition ODBC Driver for MySQL 3.x
Paid
HomeGed Pro
Trial versionCatBase Directory Publisher
Trial versionOpenLink Lite Edition ODBC Driver for SQL Server (TDS)
Trial version
Querious
Trial version
FmPro Migrator
Trial version
MyScript for Livescribe
Trial version360Works ScriptMaster
Free