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WPF-62236 Need to update arm pdfium details in UG documentation #455

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Dec 8, 2022
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WPF-62236 Need to update arm pdfium details in UG documentation #455

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7 changes: 5 additions & 2 deletions wpf/Pdf-Viewer/pdf-rendering-engines.md
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Original file line number Diff line number Diff line change
Expand Up @@ -20,13 +20,14 @@ PDFium is used in Google Chrome for rendering PDF files. It provides accurate an

N>* From v16.3.0.x onwards, this PDFium rendering engine is the default rendering engine of Syncfusion WPF PDF Viewer.
N>* From v20.1.0.x onwards, Pdfium is upgraded to the new version which was built with the branch [chromium/4880](https://pdfium.googlesource.com/pdfium/+/refs/heads/chromium/4880).
N>* From v20.4.0.x onwards, ARM64 based Pdfium assembly is generated for Syncfusion WPF PDF Viewer control in applications that target ARM64 architecture.

### How PDFium works with Syncfusion’s PDF Viewer

* On running your WPF application, Syncfusion PDF Viewer control generates a folder named `PDFium` in the application output path folder (for example: bin/release or bin/debug) at runtime.
* Syncfusion PDF Viewer control detects the architecture of the running machine automatically.
* Next, it creates another subfolder named “x64” or “x86” based on the machine architecture.
* Extracts the PDFium binary (PDFium.dll) into the subfolder (x64 or x86) and consumes it to render PDF files.
* Next, it creates another subfolder named “x64”, “x86” or “arm64” based on the machine architecture.
* Extracts the PDFium binary (PDFium.dll) into the subfolder (x64, x86 or arm64) and consumes it to render PDF files.

![WPF PDF Viewer Folder Structure](pdf-rendering-engines_images/wpf-pdf-viewer-folder-structure.png)

Expand Down Expand Up @@ -73,6 +74,8 @@ N> * x86
N> * Pdfium.dll
N> * x64
N> * Pdfium.dll
N> * arm64
N> * Pdfium.dll

## SfPdf

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Binary file modified wpf/Pdf-Viewer/pdf-rendering-engines_images/wpf-pdf-viewer-folder-structure.png
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