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Xamarin.Forms

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Fundamentals

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Document Viewer

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Document Viewer components

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Annotation and collaboration

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Advanced customization

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Conversion

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Parsing and extraction

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Digital signatures

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Search

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Advanced topics

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FAQ

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PDF Processing API

What is PDFNet?Opening a documentSerializing (saving) a documentWorking with pagesWorking with Page ContentWorking with BookmarksWorking with Interactive Forms (AcroForms)PDF SecurityLow-level PDF APIError handling
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PDF Security

The security mechanism for the high-level document works in the same way as with an SDF document. To secure a document, use the PDFDoc.SetSecurityHandler() method. To open a secured document, call PDFDoc.InitSecurityHandler(). To open a document with a password, call PDFDoc.InitStdSecurityHandler().

The following table lists security permissions available through the standard security handler:

PermissionDescription
e_ownerAll permissions are granted.
e_doc_openA permission to open a document.
e_doc_modifyModify the contents of the document.
e_printPrint the document.
e_print_highPrint the document to a representation from which a faithful digital copy of the PDF content could be generated. When this permission is not set, printing is limited to a low level representation of the appearance, possibly of degraded quality.
e_extract_contentCopy or otherwise extract text and graphics from the document.
e_mod_annotAdd or modify text annotations, fill in interactive form fields.
e_fill_formsFill in existing interactive form fields (including signature fields).
e_access_supportExtract text and graphics (in support of accessibility to disabled users or for other purposes).
e_assemble_docAssemble the document (insert, rotate, or delete pages and create bookmarks or thumbnail images), even if e_doc_modify is not set.