Am 27.07.2015 um 14:23 schrieb Roberto Nibali:
Hi
I'm trying to replicate the document security settings using PDFBox and
can't seem to get it working at all. This is the code I use:
private static PDDocument srcDoc;
private static PDDocument tplDoc;
@Test
public static void SimpleTest() throws IOException {
String ownerPassword = "12345";
srcDoc = PDDocument.load(new File("./ccalt.pdf"), ownerPassword);
tplDoc = PDDocument.load(new File("./cctemp.pdf"), ownerPassword);
This is because when opening a document with the owner password, you get
all permissions. To get restricted permissions, open the document with
the user password. (usually empty)
Try it... (I haven't tested your files)
Tilman
tplDoc.setAllSecurityToBeRemoved(true);
applyDocPermissions(ownerPassword, "");
srcDoc.close();
tplDoc.getDocumentCatalog().getAcroForm().setNeedAppearances(true);
tplDoc.save("ccmig.pdf");
tplDoc.close();
}
public static void applyDocPermissions(String ownerPassword, String
userPassword) throws IOException {
int encKeyLen;
AccessPermission srcDocAP = srcDoc.getCurrentAccessPermission();
AccessPermission destDocAP = new AccessPermission();
destDocAP.setCanAssembleDocument(srcDocAP.canAssembleDocument());
destDocAP.setCanExtractContent(srcDocAP.canExtractContent());
destDocAP.setCanExtractForAccessibility(srcDocAP.canExtractForAccessibility());
destDocAP.setCanFillInForm(srcDocAP.canFillInForm());
destDocAP.setCanModify(srcDocAP.canModify());
destDocAP.setCanModifyAnnotations(srcDocAP.canModifyAnnotations());
destDocAP.setCanPrint(srcDocAP.canPrint());
destDocAP.setCanPrintDegraded(srcDocAP.canPrintDegraded());
StandardProtectionPolicy policy = new
StandardProtectionPolicy(ownerPassword, userPassword, destDocAP);
encKeyLen = srcDoc.getEncryption().getLength();
policy.setEncryptionKeyLength(encKeyLen);
tplDoc.setAllSecurityToBeRemoved(false);
tplDoc.protect(policy);
}
The resulting restrictions and security settings are dead wrong, as seen in
these screenshots:
The original PDF:
DocumentRestrictionsSummary-OriginalPDF.png
<https://drive.google.com/file/d/0B7Bzk_1dcyc5bTZueXlGbHV5RVU/view?usp=drive_web>
DocumentSecurity-OriginalPDF.png
<https://drive.google.com/file/d/0B7Bzk_1dcyc5R0VMWjU2a0toUnc/view?usp=drive_web>
The modified PDF:
DocumentRestrictionsSummary-NewPDF.png
<https://drive.google.com/file/d/0B7Bzk_1dcyc5by00SzFLcmxHdFk/view?usp=drive_web>
DocumentSecurity-NewPDF.png
<https://drive.google.com/file/d/0B7Bzk_1dcyc5TUpqYzBTS0Mxa3c/view?usp=drive_web>
I have no idea where to look for in the PDFDebugger to figure out how to
set those document options using COS objects. Can anyone point me to the
respective sections please? Also, it seems as if the API in PDFBox does not
allow to set all aspects of those settings, or at least I couldn't find
them.
My basic question: How do I copy the existing document security settings
from the original document to the new one using PDFBox?
Best regards
Roberto
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