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Web/HTML to PDF

Apryse SDK allows you to convert html pages to PDF documents.

Convert HTML to PDF in Xamarin.Android

This tutorial only applies to Xamarin.Android. See Xamarin.iOS equivalent here .

HTML to PDF conversion is available for Android API 19 and above.

Internet connection is not required when converting local HTML files. However, it is required for converting HTTP/HTTPS links.

The HTML to PDF conversion API accepts different sources, such as HTTP/HTTPS URLs, HTML strings, and everything that can be loaded in a WebView.

From link

To convert a link URL to PDF, simply:

C#

1HTML2PDF hTML2PDF = new HTML2PDF(this);
2hTML2PDF.FromUrl("http://developer.android.com/about/index.html");
3hTML2PDF.ConversionFinished += (sender, e) =>
4{
5    // do something with e.PdfOutput
6};
7hTML2PDF.ConversionFailed += (sender, e) =>
8{
9    // error handling
10};

From HTML string

To convert an HTML string to PDF, simply:

C#

1HTML2PDF hTML2PDF = new HTML2PDF(this);
2hTML2PDF.FromHTMLDocument(myBaseUrl, myHtmlData);
3hTML2PDF.ConversionFinished += (sender, e) =>
4{
5    // do something with e.PdfOutput
6};
7hTML2PDF.ConversionFailed += (sender, e) =>
8{
9    // error handling
10};

where myBaseUrl is the URL to use as the page's base URL. If null defaults to about:blank and myHtmlData is a String of data in the UTF-8 encoding. Click here for more info.

From other sources

If none of the above fit your needs, you can also pass in a WebView directly for conversion:

C#

1HTML2PDF hTML2PDF = new HTML2PDF(myWebview);
2hTML2PDF.DoHtml2Pdf();
3hTML2PDF.ConversionFinished += (sender, e) =>
4{
5    // do something with e.PdfOutput
6};
7hTML2PDF.ConversionFailed += (sender, e) =>
8{
9    // error handling
10};

Convert HTML to PDF in Xamarin.iOS

This tutorial only applies to Xamarin.iOS. See Xamarin.Android equivalent here .

Internet connection is not required when converting local HTML files. However, it is required for converting HTTP/HTTPS links.

The platform-specific conversion API also supports HTML to PDF conversion, either with the +convertOfficeToPDF:paperSize:completion: method for .html files or the +convertHTMLStringToPDF:baseURL:paperSize:completion: for raw HTML text.

The following code shows how to convert an HTML string to PDF:

C#

1pdftronprivate.PTConvert.ConvertHTMLStringToPDF(htmlString, baseURL, CGSize.Empty, (pathToPDF) => { 
2    if (pathToPDF == null) {
3        // Failed to convert HTML to PDF.
4        return;
5    }
6
7    var documentDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
8
9    var urlToPdf = new NSUrl(pathToPDF);
10    var destinationURL = (new NSUrl(documentDirectory)).Append(urlToPdf.LastPathComponent, false);
11    var destinationFileURL = NSUrl.CreateFileUrl(destinationURL.Path, null);
12
13    NSError error = null;
14    var result = NSFileManager.DefaultManager.Copy(urlToPdf, destinationFileURL, out error);
15    if (!result) {
16        // Failed to copy PDF to persistent location.
17    }
18
19    // Do something with PDF output.
20});

where baseURL is the URL to use as the page's base URL for resolving relative links in the document.

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