pdf

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Sign the PDF:
certificate
passphrase
signature image
permission No DocMDP DocMDP pattern 1 DocMDP pattern 2 DocMDP pattern 3
reason
location
contact

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Encrypt the PDF:
encryption RC4-40 RC4-128 AES-128 AES-256
user password
public certificate
permissions:
"copy": Copy text and graphics from the document. (Only valid on public-key mode)
"print": Print the document.
"modify": Modify the contents of the document by operations other than those controlled by 'fill-forms', 'extract' and 'assemble'.
"copy-extract": Copy or otherwise extract text and graphics from the document.
"annot-forms": Add or modify text annotations, fill in interactive form fields, and, if 'modify' is also set, create or modify interactive form fields (including signature fields).
"fill-forms": Fill in existing interactive form fields (including signature fields), even if 'annot-forms' is not specified.
"extract": Extract text and graphics (in support of accessibility to users with disabilities or for other purposes).
"assemble": Assemble the document (insert, rotate, or delete pages and create bookmarks or thumbnail images), even if 'modify' is not set.
"print-high": Print the document to a representation from which a faithful digital copy of the PDF content could be generated. When this is not set, printing is limited to a low-level representation of the appearance, possibly of degraded quality.

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