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How to UnEncrypt and Render a PdfKit.PdfDocument

AllanChin.6924AllanChin.6924 USUniversity ✭✭✭

Our QA has provided a password-protected PDF file which also happens to be encrypted. Given the password, I would like to render the pages and as as create an unencrypted version of the document as well. The document opens and displays fine in Preview, but I'm unable to display a PdfPage from its DataRepresentation. Our QA has also indicated that they did not apply any kind of Owner password.

I've attached a password-protected ("123456") version and an open version of the test PDF file I'm using.

I've also attached a PdfKit_Test app which attempts the render the 1st page of a PDF document as well as create a copy. Here's my environment.

=== Visual Studio Community 2017 for Mac ===

Version 7.5.1 (build 22)
Installation UUID: 52841cf1-dbf0-469c-a714-a263f1d0573b
Mono (2017-12/ea8a24b1bbf) (64-bit)
GTK+ 2.24.23 (Raleigh theme)
Xamarin.Mac (master / eeaeb7e6)

Package version: 510010057

=== NuGet ===


=== .NET Core ===

Runtime: /usr/local/share/dotnet/dotnet
Runtime Versions:
SDK: /usr/local/share/dotnet/sdk/2.1.4/Sdks
SDK Versions:
MSBuild SDKs: /Library/Frameworks/Mono.framework/Versions/5.10.1/lib/mono/msbuild/15.0/bin/Sdks

=== Xamarin.Profiler ===

Version: 1.6.2
Location: /Applications/Xamarin Profiler

=== Xamarin.Android ===

Version: (Visual Studio Community)
Android SDK: /Users/allan/Library/Developer/Xamarin/android-sdk-macosx
Supported Android versions:
6.0 (API level 23)
7.1 (API level 25)
8.1 (API level 27)

SDK Tools Version: 25.2.5
SDK Platform Tools Version: 26.0.0
SDK Build Tools Version: 25.0.3

Java SDK: /usr
java version "1.8.0_101"
Java(TM) SE Runtime Environment (build 1.8.0_101-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.101-b13, mixed mode)

Android Designer EPL code available here:

=== Xamarin Inspector ===

Version: 1.4.0
Hash: b3f92f9
Branch: master
Build date: Fri, 19 Jan 2018 22:00:34 GMT
Client compatibility: 1

=== Apple Developer Tools ===

Xcode 9.2 (13772)
Build 9C40b

=== Xamarin.Mac ===

Version: (Visual Studio Community)

=== Xamarin.iOS ===

Version: (Visual Studio Community)
Hash: 64fece5f
Branch: d15-7
Build date: 2018-05-29 20:00:44-0400

=== Build Information ===

Release ID: 705010022
Git revision: 60442dd643a20c7a4ae1f8705b8d1de8972eee78
Build date: 2018-05-15 01:43:39+00
Xamarin addins: 4194ffe4868321e4c3477bd56aed579bda4c6fbb

=== Operating System ===

Mac OS X 10.12.6
Darwin 16.7.0 Darwin Kernel Version 16.7.0
Sun Oct 28 22:30:19 PDT 2018
root:xnu-3789.73.27~1/RELEASE_X86_64 x86_64

=== Enabled user installed addins ===

Internet of Things (IoT) development (Preview) 7.5

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