PdfPermissions
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PdfPermissions enumeration
Specifies the operations that are allowed to a user on an encrypted PDF document.
[Flags]
public enum PdfPermissions
Values
Name | Value | Description |
---|---|---|
DisallowAll | 0 |
Disallows all operations on the PDF document. This is the default value. |
AllowAll | FFFF |
Allows all operations on the PDF document. |
ContentCopy | 10 |
Copy or otherwise extract text and graphics from the document by operations other than that controlled by ContentCopyForAccessibility. |
ContentCopyForAccessibility | 200 |
Extract text and graphics (in support of accessibility to users with disabilities or for other purposes). |
ModifyContents | 8 |
Modify the contents of the document by operations other than those controlled by ModifyAnnotations, FillIn, and DocumentAssembly. |
ModifyAnnotations | 20 |
Add or modify text annotations, fill in interactive form fields, and, if ModifyContents is also set, create or modify interactive form fields (including signature fields). |
FillIn | 100 |
Fill in existing interactive form fields (including signature fields), even if ModifyContents is clear. |
DocumentAssembly | 400 |
Assemble the document (insert, rotate, or delete pages and create document outline items or thumbnail images), even if ModifyContents is clear. |
Printing | 4 |
Print the document (possibly not at the highest quality level, depending on whether HighResolutionPrinting is also set). |
HighResolutionPrinting | 804 |
Print the document to a representation from which a faithful digital copy of the PDF content could be generated, based on an implementation-dependent algorithm. When this flag is clear (and Printing is set), printing shall be limited to a low-level representation of the appearance, possibly of degraded quality. |
Examples
Shows how to set permissions on a saved PDF document.
Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);
builder.Writeln("Hello world!");
PdfEncryptionDetails encryptionDetails =
new PdfEncryptionDetails("password", string.Empty);
// Start by disallowing all permissions.
encryptionDetails.Permissions = PdfPermissions.DisallowAll;
// Extend permissions to allow the editing of annotations.
encryptionDetails.Permissions = PdfPermissions.ModifyAnnotations | PdfPermissions.DocumentAssembly;
// Create a "PdfSaveOptions" object that we can pass to the document's "Save" method
// to modify how that method converts the document to .PDF.
PdfSaveOptions saveOptions = new PdfSaveOptions();
// Enable encryption via the "EncryptionDetails" property.
saveOptions.EncryptionDetails = encryptionDetails;
// When we open this document, we will need to provide the password before accessing its contents.
doc.Save(ArtifactsDir + "PdfSaveOptions.EncryptionPermissions.pdf", saveOptions);
See Also
- namespace Aspose.Words.Saving
- assembly Aspose.Words