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https://issues.apache.org/jira/browse/PDFBOX-5027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17241060#comment-17241060
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jakatal commented on PDFBOX-5027:
---------------------------------
Here is actually some guidelines for POSIX I found:
[Utility Conventions
(opengroup.org)|https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap12.html#tag_12_01]
Which actually says in Guidelines #11 that it is not excluded to have options
repeated.
However, many other options from PDFBox "violate" that guidelines... so not
sure if that is a good reference.
So do you see any bad impact in handling with scripting principles? In the end
many people use it on script level for automation?
Anyways, I still like the repeating options more than the separation by special
character (which is in Linux ":" - and ":" can be a valid file name character
in common file systems beyond Windows). Any concerns?
Tilman, should I send a pull request to implement that feature on git?
> Protect/Encrypt PDF with multiple certificates on command line
> --------------------------------------------------------------
>
> Key: PDFBOX-5027
> URL: https://issues.apache.org/jira/browse/PDFBOX-5027
> Project: PDFBox
> Issue Type: Improvement
> Components: Crypto
> Affects Versions: 2.0.21
> Reporter: jakatal
> Priority: Trivial
> Fix For: 2.0.22, 3.0.0 PDFBox
>
> Original Estimate: 6h
> Remaining Estimate: 6h
>
> Hi,
> PDFBox has (obviously) the ability to protect a file with several
> certificates by adding teh recipient's certificates one after another:
>
>
> {code:java}
> //Class PublicKeyProtectionPolicy has
> public void addRecipient(PublicKeyRecipient recipient)
> { recipients.add(recipient); }
> {code}
> For the commandline tool functionality, it just offers "-cert" with the
> option to add a SINGLE certificate. I expect that in most serious use cases
> actually two certificates are used to protect the document (the actual
> recipient and the creator who wants to be able still to open the document as
> well).
>
> I propose to extend the command line functionality (Encrypt.java) by having
> an iteration through several cert files, e.g. separated by special character.
>
> Thanks.
>
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