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merged 2 commits into from
Sep 27, 2023
Merged

849836 - Updated the volume3 features code example with GitHub samples - Hotfix #1511

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6d09d2e
Updated the vol3 features code example
Sep 26, 2023
0fe2b9e
Update GitHub samples link
Sep 27, 2023
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78 changes: 52 additions & 26 deletions File-Formats/PDF/Convert-HTML-To-PDF/features.md
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Original file line number Diff line number Diff line change
Expand Up @@ -1821,9 +1821,9 @@ blinkConverterSettings.Margin.All = 30;
blinkConverterSettings.Css = "body {\r\n background-color: red; \r\n}";
htmlConverter.ConverterSettings = blinkConverterSettings;
//Convert the URL to PDF document.
PdfDocument document = htmlConverter.Convert(https://www.syncfusion.com);
PdfDocument document = htmlConverter.Convert("https://www.syncfusion.com");
//Create a filestream.
FileStream fileStream = new FileStream("Test.pdf", FileMode.CreateNew, FileAccess.ReadWrite);
FileStream fileStream = new FileStream("HTML-to-PDF.pdf", FileMode.CreateNew, FileAccess.ReadWrite);
//Save and close the PDF document.
document.Save(fileStream);
document.Close(true);
Expand All @@ -1844,7 +1844,7 @@ htmlConverter.ConverterSettings = blinkConverterSettings
'Convert the URL to PDF document.
Dim document As PdfDocument = htmlConverter.Convert(https://www.syncfusion.com)
'Create a filestream.
Dim fileStream As FileStream = New FileStream("Test.pdf", FileMode.CreateNew, FileAccess.ReadWrite)
Dim fileStream As FileStream = New FileStream("HTML-to-PDF.pdf", FileMode.CreateNew, FileAccess.ReadWrite)
'Save and close the PDF document.
document.Save(fileStream)
document.Close(true)
Expand All @@ -1853,6 +1853,8 @@ document.Close(true)

{% endtabs %}

You can download a complete working sample from [GitHub](https://github.com/SyncfusionExamples/PDF-Examples/tree/master/HTML%20to%20PDF/Blink/Inject_custom_CSS_to_HTML).

## Inject custom JavaScript

The Blink rendering engine offers support for injecting custom JavaScript to be applied to the HTML or a URL before rendering it into a PDF document using the 'JavaScript' property of the [BlinkConverterSettings](https://help.syncfusion.com/cr/file-formats/Syncfusion.HtmlConverter.BlinkConverterSettings.html) class.
Expand All @@ -1871,9 +1873,9 @@ blinkConverterSettings.Margin.All = 30;
blinkConverterSettings.JavaScript = "document.querySelectorAll('img').forEach((node)=>{node.remove();})";
htmlConverter.ConverterSettings = blinkConverterSettings;
//Convert the URL to PDF document.
PdfDocument document = htmlConverter.Convert(https://www.syncfusion.com);
PdfDocument document = htmlConverter.Convert("https://www.syncfusion.com");
//Create a filestream.
FileStream fileStream = new FileStream("Test.pdf", FileMode.CreateNew, FileAccess.ReadWrite);
FileStream fileStream = new FileStream("HTML-to-PDF.pdf", FileMode.CreateNew, FileAccess.ReadWrite);
//Save and close the PDF document.
document.Save(fileStream);
document.Close(true);
Expand All @@ -1892,9 +1894,9 @@ blinkConverterSettings.Margin.All = 30
blinkConverterSettings.JavaScript = "document.querySelectorAll('img').forEach((node)=>{node.remove();})"
htmlConverter.ConverterSettings = blinkConverterSettings
'Convert the URL to PDF document.
Dim document As PdfDocument = htmlConverter.Convert(https://www.syncfusion.com)
Dim document As PdfDocument = htmlConverter.Convert("https://www.syncfusion.com")
'Create a filestream.
Dim fileStream As FileStream = New FileStream("Test.pdf", FileMode.CreateNew, FileAccess.ReadWrite)
Dim fileStream As FileStream = New FileStream("HTML-to-PDF.pdf", FileMode.CreateNew, FileAccess.ReadWrite)
'Save and close the PDF document.
document.Save(fileStream)
document.Close(true)
Expand All @@ -1903,6 +1905,8 @@ document.Close(true)

{% endtabs %}

You can download a complete working sample from [GitHub](https://github.com/SyncfusionExamples/PDF-Examples/tree/master/HTML%20to%20PDF/Blink/Inject_custom_JavaScript_to_HTML).

## Performance optimization

The Blink rendering engine provides support for reusing the browser process to optimize the HTML to a PDF performance for multiple operations using the 'ReuseBrowserProcess' property of the [HtmlToPdfConverter](https://help.syncfusion.com/cr/file-formats/Syncfusion.HtmlConverter.HtmlToPdfConverter.html) class.
Expand All @@ -1915,43 +1919,63 @@ The Blink rendering engine provides support for reusing the browser process to o
HtmlToPdfConverter htmlConverter = new HtmlToPdfConverter();
//Reuse the browser instance.
htmlConverter.ReuseBrowserProcess = true;
for (int i = 0; i < 10; i++)
{
//Create PDF document.
PdfDocument document = new PdfDocument();
//Create memory stream.
MemoryStream memoryStream = new MemoryStream();
for (int i = 0; i < 10; i++)
{
//Initialize the blink converter settings.
BlinkConverterSettings settings = new BlinkConverterSettings();
settings.AdditionalDelay = 1000;
settings.EnableJavaScript = true;
htmlConverter.ConverterSettings = settings;
//Assign the settings to HTML converter.
htmlConverter.ConverterSettings = settings;
//Convert the URL to PDF document.
PdfDocument document = htmlConverter.Convert(https://www.google.com);
document.Save("Sample.pdf");
document = htmlConverter.Convert("https://www.google.com");
//Save and close the PDF document.
document.Save(memoryStream);
document.Close(true);
File.WriteAllBytes("ReuseBrowserProcess" + Guid.NewGuid().ToString() + ".pdf", memoryStream.ToArray());
}
//Close HTML converter.
htmlConverter.Close();

{% endhighlight %}

{% highlight vb.net tabtitle="VB.NET [Windows-specific]" %}

'Initialize HTML to PDF converter.
'Initialize the HTML to PDF converter.
Dim htmlConverter As HtmlToPdfConverter = New HtmlToPdfConverter()
'Reuse the browser instance.
htmlConverter.ReuseBrowserProcess = true
For i As Integer = 0 To 9
{
Dim htmlConverter As HtmlToPdfConverter = New HtmlToPdfConverter()
'Reuse the browser instance.
htmlConverter.ReuseBrowserProcess = True
'Create PDF document.
Dim document As PdfDocument = New PdfDocument()
'Create memory stream.
Dim memoryStream As MemoryStream = New MemoryStream()
For i As Integer = 0 To 10 - 1
'Initialize the blink converter settings.
Dim settings As BlinkConverterSettings = New BlinkConverterSettings()
settings.AdditionalDelay = 1000
settings.EnableJavaScript = true
htmlConverter.ConverterSettings = settings
'Convert URL to PDF document.
Dim document As PdfDocument = htmlConverter.Convert(https://www.google.com)
document.Save("Sample.pdf");
}
Next i
settings.EnableJavaScript = True
'Assign the settings to HTML converter.
htmlConverter.ConverterSettings = settings
'Convert the URL to PDF document.
document = htmlConverter.Convert("https://www.google.com")
'Save and close the PDF document.
document.Save(memoryStream)
document.Close(True)
File.WriteAllBytes("ReuseBrowserProcess" & Guid.NewGuid().ToString() & ".pdf", memoryStream.ToArray())
Next
'Close HTML converter.
htmlConverter.Close()

{% endhighlight %}

{% endtabs %}

You can download a complete working sample from [GitHub](https://github.com/SyncfusionExamples/PDF-Examples/tree/master/HTML%20to%20PDF/Blink/Optimize-HTML-to-PDF-performance).

## Temporary path

The Blink HTML converter launching Chrome browser to perform conversion. While launching Chrome browser, temporary files are created in a temporary folder.
Expand Down Expand Up @@ -2053,4 +2077,6 @@ document.Close(True)

{% endhighlight %}

{% endtabs %}
{% endtabs %}

You can download a complete working sample from [GitHub](https://github.com/SyncfusionExamples/PDF-Examples/tree/master/HTML%20to%20PDF/Blink/Set_blink_path_in_HTML_to_PDF).
5 changes: 4 additions & 1 deletion File-Formats/PDF/Working-with-OCR/Features.md
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Original file line number Diff line number Diff line change
Expand Up @@ -1211,6 +1211,7 @@ processor.Settings.Performance = Performance.Fast
{% endhighlight %}

{% endtabs %}

## TesseractBinaries Paths and Tesseract Language Data

Starting with v21.1.x, TesseractBinaries, and Tesseract language data folder paths are added by default. So, there is no need to provide these paths explicitly. However, you can refer to TesseractBinaries and Tessdata paths manually in your application as per the requirement.
Expand Down Expand Up @@ -1345,4 +1346,6 @@ End Using

{% endhighlight %}

{% endtabs %}
{% endtabs %}

You can downloaded a complete working sample from [GitHub](https://github.com/SyncfusionExamples/PDF-Examples/tree/master/OCR/.NET/Get-image-rotation-angle-from-OCR).