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1. Consuming PDF > 12. Unpack PDF Attachments (Even Without Acrobat)

Unpack PDF Attachments (Even Without Acrobat)

Save attachments to your disk, where you can use them.

Authors sometimes supplement their documents with additional electronic resources. For example, a document that displays large tables of data might also provide the reader with a matching Excel spreadsheet to work with. PDF’s file attachment feature is an open-ended mechanism for packing any electronic file into a PDF like this. As discussed in [Hack #54] , these attachments can be associated with the overall document or with individual pages. You can unpack PDF attachments to your disk using Acrobat, Reader, or our pdftk [Hack #79] . After unpacking an attachment, you can view and manipulate it independently from the PDF document.


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