Freeware: pdftk (the pdf toolkit)

Today I need to merge 2 pdf files and I don't have Adobe Acrobat to do that. There are quite numbers of tools available to be downloaded from internet but it is not free, it is either shareware or trial version. Finally I found this useful FREE tool: pdftk (the pdf toolkit) which can be downloaded from this website: http://www.accesspdf.com/pdftk/

It runs on Windows, Linux, Mac OS X, FreeBSD and Solaris. In Windows, it works under DOS, so you need to open DOS prompt by typing 'cmd' or 'command' in Start->Run... Under DOS prompt, to merge documents, e.g. filename1.pdf and filename2.pdf to a file namely mergefile.pdf, type this command: pdftk filename1.pdf filename2.pdf cat output mergefile.pdf. Please make sure all files (including the pdftk.exe) in under same folder.