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Posted to users@pdfbox.apache.org by Keith R Wood <wo...@ugcorp.com> on 2016/07/20 19:37:19 UTC
Changing "Content Copying" permission
I am trying to change the attributes "Content Copying" and "Content Copying for Accessibility" on a PDF received from a third party.
I'm not sure if this is possible, but am unable to find anything that says it is not allowed.
Here is what I can tell you about the PDF.
Both "Content Copying and Content Copying for Accessibility are currently set to "Allowed".
The PDF is NOT read only.
The "Owner Permission" is set to false (which I am thinking may be key).
I set both attributes to false, I then save the document and close the document.
The time stamp of the document gets updated, but the attributes remain unchanged.
Below is sample code and output:
PDDocument doc = PDDocument.load(pdfFile);
canExtract = doc.getCurrentAccessPermission().canExtractContent();
canExtractFA = doc.getCurrentAccessPermission().canExtractForAccessibility();
canExtract_owner = doc.getCurrentAccessPermission().getOwnerAccessPermission().canExtractContent();
canExtractFA_owner = doc.getCurrentAccessPermission().getOwnerAccessPermission().canExtractForAccessibility();
readOnly = doc.getCurrentAccessPermission().isReadOnly();
ownerPermission = doc.getCurrentAccessPermission().isOwnerPermission();
doc.getCurrentAccessPermission().setCanExtractForAccessibility(false);
doc.getCurrentAccessPermission().setCanExtractContent(false);
doc.getCurrentAccessPermission().getOwnerAccessPermission().setCanExtractContent(false);
doc.getCurrentAccessPermission().getOwnerAccessPermission().setCanExtractForAccessibility(false);
doc.save(pdfFile);
doc.close();
canExtract-true, canExtractFA-
Thank you
_____________________________________________________
Keith Wood | Applications Program Lead | United Guaranty Corporation
300 N. Greene St. | Greensboro, NC 27401
Phone: 336.334.8547
woodkr@ugcorp.com<ma...@ugcorp.com>
www.ugcorp.com<http://www.ugcorp.com/>
____________________________
----------------------------------------------------------------------
--------------------------------------------------------------------------
United Guaranty is a marketing term for United Guaranty Corporation and its subsidiaries. This communication from United Guaranty Corporation or its subsidiary is directed to and is for the use of the individual or entity to which it is addressed. It may contain information that is confidential and exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any distribution, dissemination, or copy of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately, and then delete or destroy the material in its entirety. United Guaranty Corporation and its subsidiaries
230 North Elm Street
Greensboro, NC 27401
RE: Changing "Content Copying" permission
Posted by Keith R Wood <wo...@ugcorp.com>.
Thank you so much Tilman, that got me where I need to go.
Thank you
_____________________________________________________
Keith Wood | Applications Program Lead | United Guaranty Corporation
300 N. Greene St. | Greensboro, NC 27401
Phone: 336.334.8547
woodkr@ugcorp.com
www.ugcorp.com
____________________________
-----Original Message-----
From: Tilman Hausherr [mailto:THausherr@t-online.de]
Sent: Wednesday, July 20, 2016 5:02 PM
To: users@pdfbox.apache.org
Subject: Re: Changing "Content Copying" permission
Am 20.07.2016 um 21:37 schrieb Keith R Wood:
> I am trying to change the attributes "Content Copying" and "Content Copying for Accessibility" on a PDF received from a third party.
>
> I'm not sure if this is possible, but am unable to find anything that says it is not allowed.
>
> Here is what I can tell you about the PDF.
>
> Both "Content Copying and Content Copying for Accessibility are currently set to "Allowed".
>
> The PDF is NOT read only.
>
> The "Owner Permission" is set to false (which I am thinking may be key).
>
> I set both attributes to false, I then save the document and close the document.
>
> The time stamp of the document gets updated, but the attributes remain unchanged.
>
> Below is sample code and output:
>
> PDDocument doc = PDDocument.load(pdfFile);
> canExtract = doc.getCurrentAccessPermission().canExtractContent();
> canExtractFA = doc.getCurrentAccessPermission().canExtractForAccessibility();
> canExtract_owner = doc.getCurrentAccessPermission().getOwnerAccessPermission().canExtractContent();
> canExtractFA_owner = doc.getCurrentAccessPermission().getOwnerAccessPermission().canExtractForAccessibility();
> readOnly =
> doc.getCurrentAccessPermission().isReadOnly();
> ownerPermission =
> doc.getCurrentAccessPermission().isOwnerPermission();
>
>
> doc.getCurrentAccessPermission().setCanExtractForAccessibility(false);
>
> doc.getCurrentAccessPermission().setCanExtractContent(false);
> doc.getCurrentAccessPermission().getOwnerAccessPermission().setCanExtractContent(false);
>
> doc.getCurrentAccessPermission().getOwnerAccessPermission().setCanExtr
> actForAccessibility(false);
if ap is your access permission, then do this before saving:
StandardProtectionPolicy spp =
new
StandardProtectionPolicy("secretpassword", "", ap);
spp.setEncryptionKeyLength(256); // not really needed...
document.protect(spp);
You can also leave the default key length... PDF security for permissions only (i.e. empty user psw) is not real security anyway.
Tilman
>
> doc.save(pdfFile);
> doc.close();
>
>
>
> canExtract-true, canExtractFA-
>
> Thank you
> _____________________________________________________
> Keith Wood | Applications Program Lead | United Guaranty Corporation
> 300 N. Greene St. | Greensboro, NC 27401
>
> Phone: 336.334.8547
> woodkr@ugcorp.com<ma...@ugcorp.com>
> www.ugcorp.com<http://www.ugcorp.com/>
> ____________________________
>
> ----------------------------------------------------------------------
> ----------------------------------------------------------------------
> ---- United Guaranty is a marketing term for United Guaranty
> Corporation and its subsidiaries. This communication from United Guaranty Corporation or its subsidiary is directed to and is for the use of the individual or entity to which it is addressed. It may contain information that is confidential and exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any distribution, dissemination, or copy of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately, and then delete or destroy the material in its entirety. United Guaranty Corporation and its subsidiaries
> 230 North Elm Street
> Greensboro, NC 27401
>
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----------------------------------------------------------------------
--------------------------------------------------------------------------
United Guaranty is a marketing term for United Guaranty Corporation and its subsidiaries. This communication from United Guaranty Corporation or its subsidiary is directed to and is for the use of the individual or entity to which it is addressed. It may contain information that is confidential and exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any distribution, dissemination, or copy of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately, and then delete or destroy the material in its entirety. United Guaranty Corporation and its subsidiaries
230 North Elm Street
Greensboro, NC 27401
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Re: Changing "Content Copying" permission
Posted by Tilman Hausherr <TH...@t-online.de>.
Am 20.07.2016 um 21:37 schrieb Keith R Wood:
> I am trying to change the attributes "Content Copying" and "Content Copying for Accessibility" on a PDF received from a third party.
>
> I'm not sure if this is possible, but am unable to find anything that says it is not allowed.
>
> Here is what I can tell you about the PDF.
>
> Both "Content Copying and Content Copying for Accessibility are currently set to "Allowed".
>
> The PDF is NOT read only.
>
> The "Owner Permission" is set to false (which I am thinking may be key).
>
> I set both attributes to false, I then save the document and close the document.
>
> The time stamp of the document gets updated, but the attributes remain unchanged.
>
> Below is sample code and output:
>
> PDDocument doc = PDDocument.load(pdfFile);
> canExtract = doc.getCurrentAccessPermission().canExtractContent();
> canExtractFA = doc.getCurrentAccessPermission().canExtractForAccessibility();
> canExtract_owner = doc.getCurrentAccessPermission().getOwnerAccessPermission().canExtractContent();
> canExtractFA_owner = doc.getCurrentAccessPermission().getOwnerAccessPermission().canExtractForAccessibility();
> readOnly = doc.getCurrentAccessPermission().isReadOnly();
> ownerPermission = doc.getCurrentAccessPermission().isOwnerPermission();
>
>
> doc.getCurrentAccessPermission().setCanExtractForAccessibility(false);
> doc.getCurrentAccessPermission().setCanExtractContent(false);
> doc.getCurrentAccessPermission().getOwnerAccessPermission().setCanExtractContent(false);
> doc.getCurrentAccessPermission().getOwnerAccessPermission().setCanExtractForAccessibility(false);
if ap is your access permission, then do this before saving:
StandardProtectionPolicy spp =
new
StandardProtectionPolicy("secretpassword", "", ap);
spp.setEncryptionKeyLength(256); // not really
needed...
document.protect(spp);
You can also leave the default key length... PDF security for
permissions only (i.e. empty user psw) is not real security anyway.
Tilman
>
> doc.save(pdfFile);
> doc.close();
>
>
>
> canExtract-true, canExtractFA-
>
> Thank you
> _____________________________________________________
> Keith Wood | Applications Program Lead | United Guaranty Corporation
> 300 N. Greene St. | Greensboro, NC 27401
>
> Phone: 336.334.8547
> woodkr@ugcorp.com<ma...@ugcorp.com>
> www.ugcorp.com<http://www.ugcorp.com/>
> ____________________________
>
> ----------------------------------------------------------------------
> --------------------------------------------------------------------------
> United Guaranty is a marketing term for United Guaranty Corporation and its subsidiaries. This communication from United Guaranty Corporation or its subsidiary is directed to and is for the use of the individual or entity to which it is addressed. It may contain information that is confidential and exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any distribution, dissemination, or copy of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately, and then delete or destroy the material in its entirety. United Guaranty Corporation and its subsidiaries
> 230 North Elm Street
> Greensboro, NC 27401
>
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