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873365: Revamping the OCR Linux prerequisites command. #1905

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Merged
merged 3 commits into from
Mar 1, 2024
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873365: Revamping the OCR Linux prerequisites command. #1905

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bb0547e
873365: Revamping the OCR Linux prerequisites command.
Sri-hari-haran-g Feb 29, 2024
3eecacd
Merge branch 'hotfix/hotfix-v24.2.3' of https://github.com/syncfusion…
Sri-hari-haran-g Feb 29, 2024
8e66a14
873365: Added OCR Linux prerequisites command in troubleshooting page.
Sri-hari-haran-g Mar 1, 2024
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2 changes: 0 additions & 2 deletions File-Formats/PDF/Convert-HTML-To-PDF/troubleshooting.md
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Expand Up @@ -657,8 +657,6 @@ To resolve this issue, we can add inline styles in element. However, we have att

{% tabs %}

Code sample:

{% highlight c# tabtitle="C#" %}

HtmlToPdfConverter htmlConverter = new HtmlToPdfConverter();
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1 change: 1 addition & 0 deletions File-Formats/PDF/Working-with-OCR/Linux.md
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Expand Up @@ -21,6 +21,7 @@ sudo apt-get install libc6-dev

{% endhighlight %}


## Steps to convert HTML to PDF in .NET Core application on Linux

Step 1: Execute the following command in the Linux terminal to create a new .NET Core Console application.
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55 changes: 55 additions & 0 deletions File-Formats/PDF/Working-with-OCR/Troubleshooting.md
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Expand Up @@ -286,6 +286,61 @@ cp /usr/lib/x86_64-linux-gnu/libtesseract.so.4 /home/syncfusion/linuxdockersampl

{% endhighlight %}
<br/>
</td>
</tr>
</table>


## OCR not working on Linux: Exception has been thrown by the target of an invocation

<table>
<th style="font-size:14px" width="100px">Issue</th>
<th style="font-size:14px">Syncfusion.Pdf.PdfException: Exception has been thrown by the target of an invocation" in the Linux machine.</th>
<tr>
<th style="font-size:14px" width="100px">Reason
</th>
<td>The problem occurs due to the missing prerequisites dependencies on your Linux machine.
</td>
</tr>
<tr>
<th style="font-size:14px" width="100px">Solution</th>
<td>
To resolve this problem, you should install all required dependencies in your Linux machine. Refer to the following steps to installing the missing dependencies.

Step 1: Execute the following command in terminal window to check dependencies are installed properly.

{% highlight %}

ldd liblept1753.so
ldd libSyncfusionTesseract.so

{% endhighlight %}

Run the following commands in terminal
Step 1:

{% highlight %}

sudo apt-get install libleptonica-dev libjpeg62

{% endhighlight %}

Step 2:

{% highlight %}

ln -s /usr/lib/x86_64-linux-gnu/libtiff.so.6 /usr/lib/x86_64-linux-gnu/libtiff.so.5

{% endhighlight %}

Step 3:

{% highlight %}

ln -s /lib/x86_64-linux-gnu/libdl.so.2 /usr/lib/x86_64-linux-gnu/libdl.so

{% endhighlight %}

</td>
</tr>
</table>