NAME

       Image::ExifTool::PDF - Read PDF meta information

SYNOPSIS

       This module is loaded automatically by Image::ExifTool when required.

DESCRIPTION

       This code reads meta information from PDF (Adobe Portable Document Format) files.  It
       supports object streams introduced in PDF-1.5 but only with a limited set of Filter and
       Predictor algorithms, however all standard encryption methods through PDF-1.7 extension
       level 3 are supported, including AESV2 (AES-128) and AESV3 (AES-256).

AUTHOR

       Copyright 2003-2018, Phil Harvey (phil at owl.phy.queensu.ca)

       This library is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.

REFERENCES

       <http://partners.adobe.com/public/developer/pdf/index_reference.html>
       Crypt::RC4
       <http://www.adobe.com/devnet/acrobat/pdfs/PDF32000_2008.pdf>
       <http://www.adobe.com/content/dam/Adobe/en/devnet/pdf/pdfs/adobe_supplement_iso32000.pdf>
       <http://tools.ietf.org/search/rfc3454>
       <http://www.armware.dk/RFC/rfc/rfc4013.html>

SEE ALSO

       "PDF Tags" in Image::ExifTool::TagNames, Image::ExifTool(3pm)