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https://issues.apache.org/jira/browse/PDFBOX-5027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17239501#comment-17239501
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Tilman Hausherr edited comment on PDFBOX-5027 at 11/27/20, 3:48 AM:
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I found out all versions work. For my own work, I use the command line tool 
differently:
{code}
java -cp "pdfbox-app-%VERSION%.jar;lib/*" org.apache.pdfbox.tools.PDFBox Encrypt
{code}
which is related to having additional image libraries, which is not relevant 
here.

Re syntax: you're right, my suggestion is unusual. Maybe we shouldn't do that. 
Maybe use a separator, the one used in the classpath.
https://stackoverflow.com/questions/60211687/

Re error: shouldn't it all fail?


was (Author: tilman):
I found out all versions work. For my own work, I use the command line tool 
differently:
{code}
java -cp "pdfbox-app-%VERSION%.jar;lib/*" 
{code}
org.apache.pdfbox.tools.PDFBox Encrypt}} which is related to having additional 
image libraries, which is not relevant here.

Re syntax: you're right, my suggestion is unusual. Maybe we shouldn't do that. 
Maybe use a separator, the one used in the classpath.
https://stackoverflow.com/questions/60211687/

Re error: shouldn't it all fail?

> 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
>            Reporter: jakatal
>            Priority: Trivial
>   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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