tagging PDFs with keywords and filtering them later

[LanX]

Hi

I'm having a big amount of PDF documents in a directory from various sources (word, scan, latex) which I would like to organize.

More or less the same way I can find PDFs with embedded text by using grep.

My idea is to add keywords/tags and to use an application to filter them by those keywords.

Any suggestions how to do this from command line, preferably with Perl?

[snoopy]

Image::ExifTool is a module for adding keywords and other searchable metadata to PDF files and various other image formats.

You can use the OO interface, or its command line utility exiftool

    % # add keywords to a PDF
    % exiftool -keywords=perl -keywords=snoopy test.pdf
    %
    % # read them back
    % exiftool -keywords test.pdf
    Keywords                        : perl, snoopy

[LanX]

Awesome! Thanks :)

PS: CPAN rules! Really! =)

[Anonymous Monk]

Take CAM::PDF's rewritepdf.pl and modify it to add "Keywords:" , and send the author a patch :)