Pdftk – PDF Tool-kit

If PDF is electronic paper, then pdftk is an electronic staple-remover, hole-punch, binder, secret-decoder-ring, and X-Ray-glasses. Pdftk is a command-line tool for doing everyday things with PDF documents. Keep one in the top drawer of your desktop and use it to:

1. Merge PDF Documents
2. Split PDF Pages into a New Document
3. Decrypt Input as Necessary (Password Required)
4. Encrypt Output as Desired
5. Fill PDF Forms with FDF Data and/or Flatten Forms
6. Apply a Background Watermark
7. Report on PDF Metrics such as Metadata, Bookmarks, and Page Labels
8. Update PDF Metadata
9. Attach Files to PDF Pages or the PDF Document
10. Unpack PDF Attachments
11. Burst a PDF Document into Single Pages
12. Uncompress and Re-Compress Page Streams
13. Repair Corrupted PDF (Where Possible)

Pdftk allows you to manipulate PDF easily and freely. It does not require Acrobat, and it runs on Windows, Linux, Mac OS X, FreeBSD and Solaris.

Pdftk is free software (GPL).

Here’s the link to read Documentation & here’s the link to d/l PDFTK .