pdfdetach
lists or extracts embedded files from a PDF file
TLDR
List all attachments in PDF
$ pdfdetach -list input.pdf
Save attachment by number$ pdfdetach -save 1 input.pdf
Save attachment by name$ pdfdetach -savefile filename input.pdf
Save all attachments$ pdfdetach -saveall input.pdf
Save with custom output name$ pdfdetach -save 1 -o output.txt input.pdf
Extract from password-protected PDF$ pdfdetach -save 1 -upw password input.pdf
List with specific encoding$ pdfdetach -list -enc UTF-8 input.pdf
SYNOPSIS
pdfdetach [options] PDF-file
DESCRIPTION
pdfdetach lists or extracts embedded files (attachments) from a PDF file. It is part of the poppler-utils package.
PARAMETERS
-list
List all embedded files in the PDF-save NUMBER
Save embedded file by its index number-savefile FILENAME
Save embedded file by its filename-saveall
Save all embedded files using their original names-o PATH
Set output file name or directory for saved files-enc ENCODING
Specify text encoding for filenames (default: UTF-8)-opw PASSWORD
Owner password for encrypted PDF-upw PASSWORD
User password for encrypted PDF-v
Display version information-h, --help
Display usage information
CAVEATS
Exit codes: 0 (success), 1 (PDF opening error), 2 (output file error), 3 (permissions issue), 99 (other errors). Attachment numbers start at 1.
HISTORY
pdfdetach is part of poppler-utils, a set of command-line utilities based on the Poppler PDF rendering library.