CODEWITHSUNDEEP
pdf-generationtagged-pdf
Rahul
Rahul

Reputation: 2234

Metadata in PDF Files

I want to be able to store some plugin-specific data in a PDF so that I can read it back when that PDF is loaded back, without this metadata being visible to the user.

How can I put this metadata into the PDF File?

Upvotes: 3

Views: 1779

Answers (3)

dirkgently
dirkgently

Reputation: 111316

PDF supports XMP metadata. You should append your plug-in specific information as a payload in the XMP portion.

Upvotes: 2

northpole
northpole

Reputation: 10346

Depending on how you are generating and reading your PDFs you can use pdftk to edit your metadata. You can add an invisable tag to the PDF by adding it as a metadata property with a key and value by using pdftk dump_data to write all metadata to a text file, then append the new key and value to the text file, then use pdftk update_info to put back all the metadata, including the new key value pair.

Upvotes: 2

R Ubben
R Ubben

Reputation: 2204

The easiest way to do that is simply append the information as text to the end of the pdf file.

Upvotes: -2

Related Questions