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Joining PDF Files in OS X From the Command Line In OS X, PDF files can be concatenated manually using Preview. But if you are happy using Terminal there’s an easier way, thanks to a Python script installed by default in /System/Library/Automator Combining PDF files manually using Preview Preview allows PDF files to be combined by dragging and dropping, as long as you are careful when do it - or it won’t work. First of all, open the first PDF file in Preview as per normal. Then drag each of the other PDFs in turn, over the last page thumbnail in the drawer. This is where you need to be careful - you need to drop the document  over  the thumbnail of the previous document last page, not underneath it. Otherwise Preview will treat them as separate document and won’t merge them. The difference is quite easy to spot - when doing it right Preview will show a border around the thumbnail in the sidebar, instead of a line underneath it - see image below. How to spot whether Preview

Mac OS X: How to merge pdf files in a directory according to their file names https://www.pdflabs.com/tools/pdftk-server/ Try  pdftk . It is command-line software that can join PDF files (and do lots of other stuff, too, but that isn't relevant here). You can download it  from the official pdftk web page . Sample syntax: pdftk old1.pdf old2.pdf old3.pdf cat output new.pdf will create the file  new.pdf  that contains the concatenation of the files  old1.pdf ,  old2.pdf ,  old3.pdf . To solve your problem, with your example filenames: pdftk 1000.*.pdf cat 1000.pdf pdftk 2000.*.pdf cat 2000.pdf and so on. You can use shell scripting to make this completely automatic if desired (but you'll have to spend a little time on your own learning how to write shell scripts). Assuming all files are named 1000.x, 2000.x etc. a shell script could look somehow like this #!/bin/bash for n in {1..9}; do if [[ -r ${n}000.1.pdf ]]; then rm -f ${n}000.pdf pdf

In order to get absolute directory name with ls, enter in the terminal's command shell: $ ls -d $PWD/* Example ls with absolute directory name: $ ls -d $PWD/* /home/user/Desktop   /home/user/Music    /home/user/Templates /home/user/Documents /home/user/Pictures /home/user/todo.txt /home/user/Downloads /home/user/Public   /home/user/Videos $ ls with long listing format (-l) absolute directory name (-d): $ ls -ld $PWD/* total 4 drwxr-xr-x 2 user user  80 2011-08-17 16:52 /home/user/Desktop drwxr-xr-x 2 user user  40 2011-08-17 16:52 /home/user/Documents drwxr-xr-x 2 user user  40 2011-08-17 16:52 /home/user/Downloads drwxr-xr-x 2 user user  40 2011-08-17 16:52 /home/user/Music drwxr-xr-x 2 user user 120 2011-08-17 18:14 /home/user/Pictures drwxr-xr-x 2 user user  40 2011-08-17 16:52 /home/user/Public drwxr-xr-x 2 user user  40 2011-08-17 16:52 /home/user/Templates -rw-r--r-- 1 user user 131 2011-08-17 18:07 /home/user/todo.txt drwxr-xr-x 2 user user  40 2011-08-17 16:5