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: • Merge PDF Documents • Split PDF Pages into a New Document • Decrypt Input as Necessary (Password Required) • Encrypt Output as Desired • Fill PDF Forms with FDF Data and/or Flatten Forms • Apply a Background Watermark • Report on PDF Metrics such as Metadata, Bookmarks, and Page Labels • Update PDF Metadata • Attach Files to PDF Pages or the PDF Document • Unpack PDF Attachments • Burst a PDF Document into Single Pages • Uncompress and Re-Compress Page Streams • Repair Corrupted PDF (Where Possible)