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MS Office → Browser
Add copy protection pdf - C# PDF Password Library: add, remove, edit PDF file password in C#.net, ASP.NET, MVC, WinForms, WPF
Help to Improve the Security of Your PDF Document by Setting Password
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MS Office → Browser
VB.NET PDF Library SDK to view, edit, convert, process PDF file
file and load PDF from other file formats; merge, append, and split PDF files; insert, delete, move, rotate, copy and paste PDF Document Protection.
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MS Office → Browser
I.  We create a DOC file with a hyperlink
II.  We carefully edit it via hex editor
III.  We add some HTML around the hyperlink
IV.  We use contenteditable=false to make it  
“clickable”
V.  Word creates a HTML bucket on copy
VI.  MSIE “understands” that upon pasting
VII .We have an XSS
Or we do it just as with OpenOffice and use a DOCX instead 
of a DOC, we open it as ZIP, edit around in the content file 
and cause XSS like that
C# HTML5 Viewer: Load, View, Convert, Annotate and Edit PDF
PDF Protection. If you need to add your own signatures such as logo to PDF document, you and Users can select PDF text region, copy and paste PDF text for edit.
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How to C#: Basic SDK Concept of XDoc.PDF for .NET
combine, and split PDF file(s), and add, create, insert, delete, re-order, copy, paste, cut You may add PDF document protection functionality into your
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XPS → Browser
C# HTML5 PDF Viewer SDK to view, annotate, create and convert PDF
RasterEdge C#.NET HTML5 PDF Viewer allows users to add annotations to Editor also provides C#.NET users secure solutions for PDF document protection.
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combine, and split PDF file(s), and add, create, insert, delete, re-order, copy, paste, cut You may add PDF document protection functionality into your
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XPS → Browser
C# WinForms Viewer: Load, View, Convert, Annotate and Edit PDF
Add text to PDF document in preview. • Add text box to PDF file in preview. • Draw PDF markups. PDF Protection. • Sign PDF document with signature.
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How to C#: Quick to Start Using XDoc.PDF for .NET
redaction, PDF document annotation, PDF document protection and more in Add necessary XDoc.PDF DLL libraries into your Copy of the following C# sample code to
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XPS → Browser
XPS → Browser: Cookbook
I.   We take some free font from somewhere
II.   We modify its properties using font-forge
III.   We add XSS payload into one of the properties
IV.   We install the font on our system
V.   We create a document and save it as XPS
VI . The font will now be embedded
VII . We use the XPS on a different system
VII I. The font-family name will contain XSS payload
IX . IE understands that
X.  We have another XSS 
Again upon paste, this time no other user interaction required
Overview
PDF → Browser, works in MSIE. PDF readers do not create a HTML Bucket 
but MSIE also understands RTF buckets and transforms them to HTML on its 
own.
DOC/DOCX → Browser, works in MSIE – from Office 2013 but not the Word 
Viewer. Similarly works in other office products
XPS → Browser, works in MSIE because of a bug in the clipboard sanitizer. 
Necessary tools here are a malicious font created with font-forge
ODT → Browser, works in Chrome and Firefox because of clipboard 
sanitizer bugs. Sanitizer between tabs is fine, sanitizer between applications 
is broken
Most of the attacks survive changes in the document!
“Affected” office software
Office 2013, LibreOffice and similar tools, PDF Reader, FoxIT Reader
They can be used to poison the clipboard with malicious markup
Affected browsers
Just MSIE, Chrome, Opera, Safari, Firefox, anything WebKit or Blink. Strangely, Blink 
on Windows behaves differently from Blink on *nix
More Surface
Attackers can use Flash to stuff your clipboard too
Flash can fill the HTML and the RTF bucket
All you need is a click
You can also embed a Flash in a PDF and once it's 
clicked it fills your clipboard
On MSIE, you also have ways to fill the clipboard 
without user consent, but no HTML or RTF buckets
So Flash remains the most attractive vector here
Yet, abusing that smartly is a different story
Defense
All discovered attack techniques were reported to browser 
vendors. They need to fix their clipboard sanitizers
Websites can fix the shortcomings of browsers too – and 
sanitize after paste
We can for instance utilize our tool DOMPurify to do the job
To illustrate how it works, we created a browser extension that 
does two things:
It sanitizes the HTML of an element pasted into after pasting. Not 
optimal but good enough for a proof of concept
It allows to show the HTML bucket of the clipboard. Very useful.
Let's have a look at that!
Oh, and NoScript has a fix too!
And consider using Ctrl+Shift+V a bit more often :)
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