Questions on Telerik Document Processing Forum

5 answers

599 views

Hi,

Is it possible to export Unicode characters from supplementary planes (above Plane 0), i.e. those that need more than 2 bytes of storage? They seem to be silently ignored (normally a replacement character such as '?' is shown for unsupported code points).

A simple test shows that small value code points are OK but longer ones are ignored. This should show 2 smiley faces:

var editor = new FixedContentEditor(container);

editor.DrawText("Smiley face OK: \u263A Smiley ignored: \uD83D\uDE0A");

Any comments/suggestions would be welcome.

Thanks,
Chris

UI for WPF R2 2016 SP1

PdfProcessing

answered on 27 Sep 2016

3 answers

361 views

Import Html, Export Docx highlighting color

Hello!

We try to import HTML Source Code, and export it to OpenXml.

The problem is, that the highlighting - color of the Runs (RunProperties) does not match with the HTML-highlighting-colors.

The HTML string is for example:

<p style="margin-top: 0px;margin-bottom: 0px;line-height: 1.15;"><span style="font-family: 'Verdana';font-size: 16px;background-color: #F79646;">Test<span style="font-family: 'Verdana';font-size: 16px;">

The WordProcessing - Code:

HtmlFormatProvider cHtmlFormatProvider = new HtmlFormatProvider();

RadDocument cDocument = cHtmlFormatProvider.Import(sHtmlString);

DocxFormatProvider cDocxFormatProvider = new DocxFormatProvider();

using (var fileStream = new MemoryStream())

{

cProvider.Export(cDocument, fileStream);

using (WordprocessingDocument wp = WordprocessingDocument.Open(fileStream, true))

{

//Paragraphs and runs etc...

}

But if i check the RunProperties of the Run (of the Paragraph), i see that the highlighting color is 'yellow' but it should be #F79646 (Orange).

There is no other possibility for us, we have to export it to HTML.

The Html Source Code was produced by RadRichTextBox.

Please help us.

Thank you.

WordsProcessing

answered on 22 Sep 2016

3 answers

714 views

Docx/Xlsx to RadfixedDocument via PdfProcessing

Hi, Im trying to convert docx/xlsx documents to jpg images. The only way I know of how to do this is via the WPF telerik. By converting a Docx/XLSX to PDF then PDF to jpg image. If there is any other way please let me know. This is what I'm currently doing:

XLSX

Dim stream As FileStream = File.OpenRead(inputPath)

Dim document As RadFixedDocument

Dim fileFormatProvider As Spreadsheet.FormatProviders.IWorkbookFormatProvider = New Spreadsheet.FormatProviders.OpenXml.Xlsx.XlsxFormatProvider()

Dim workbook As Spreadsheet.Model.Workbook

Using stream

workbook = fileFormatProvider.Import(stream)

End Using

Dim formatProvider As New Spreadsheet.FormatProviders.Pdf.PdfFormatProvider()

document = formatProvider.ExportToFixedDocument(workbook)

Dim page As RadFixedPage = document.Pages(0)

Dim factory2 As New ThumbnailFactory

Dim size2 = New Size(1200, 1800)

'This line throws an error

Dim imageSrc As ImageSource = factory2.CreateThumbnail(page, size2)

DOCX

Dim stream As FileStream = File.OpenRead(inputPath)

Dim document As RadFixedDocument

Dim docxformatprovider As New Flow.FormatProviders.Docx.DocxFormatProvider()

Dim docxdocument As Flow.Model.RadFlowDocument = docxformatprovider.Import(stream)

Dim formatProvider As New Flow.FormatProviders.Pdf.PdfFormatProvider()

document = formatProvider.ExportToFixedDocument(docxdocument)

'To image conversion

Dim page As RadFixedPage = document.Pages(0)

Dim factory2 As New ThumbnailFactory

Dim size2 = New Size(1200, 1800)

'This line throws an error

Dim imageSrc As ImageSource = factory2.CreateThumbnail(page, size2)

The code is a little bit different, the xlsx code contains Using Stream but makeing no difference.

The last line throws an error: An unhandled exception of type 'System.NullReferenceException' occurred in Telerik.Windows.Controls.FixedDocumentViewers.dll

But if I save the Flowdocument as a PDF, then open it again it wont be a problem to create an imageSrc with the fixedpage, this is of course not a desirable situation:

'Here I already converted the document to a RadFlowDocument

Dim provider As New Fixed.FormatProviders.Pdf.PdfFormatProvider()

Using output As Stream = File.OpenWrite(inputPath & ".pdf")

provider.Export(document, output)

End Using

Dim stream2 As FileStream = File.OpenRead(inputPath & ".pdf")

Dim pdf As New Fixed.FormatProviders.Pdf.PdfFormatProvider(stream2, Fixed.FormatProviders.FormatProviderSettings.ReadOnDemand)

document = pdf.Import()

Dim page As RadFixedPage = document.Pages(0)

Dim factory2 As New ThumbnailFactory

Dim size2 = New Size(1200, 1800)

'No problem, image can be created.

Dim imageSrc As ImageSource = factory2.CreateThumbnail(page, size2)

This only works for the DOCX file. The XLSX can't be saved from the workbook file.

I hope you can help me.

These are the guides I used:
http://docs.telerik.com/devtools/document-processing/libraries/radwordsprocessing/formats-and-conversion/pdf/pdfformatprovider.html
http://docs.telerik.com/devtools/document-processing/libraries/radwordsprocessing/formats-and-conversion/docx/docxformatprovider.html
http://docs.telerik.com/devtools/document-processing/libraries/radspreadprocessing/formats-and-conversion/xlsx/xlsxformatprovider.html
http://docs.telerik.com/devtools/document-processing/libraries/radspreadprocessing/formats-and-conversion/pdf/pdfformatprovider.html
http://docs.telerik.com/devtools/document-processing/libraries/radpdfprocessing/formats-and-conversion/pdf/pdfformatprovider.html
http://www.telerik.com/forums/convert-pdf-to-jpg

PdfProcessing

answered on 20 Sep 2016

2 answers

111 views

Exporting transparent gradients

Hi,

Is it possible to generate PDFs containing transparent gradients?

Setting the alpha component on a solid object (RgbColor) works as expected; it's not fully opaque and any colours behind the show though. Setting the alpha component on GradientStops appears to have no effect; the colors are shown at full opacity

This can be demonstrated with the API documentation example http://docs.telerik.com/devtools/document-processing/libraries/radpdfprocessing/concepts/colors-and-color-spaces#patterncolor and simply changing the LinearGradient stops to include an alpha value that is less than 255:

linearGradient.GradientStops.Add(new GradientStop(new RgbColor(10, 0, 207, 0), 0));

linearGradient.GradientStops.Add(new GradientStop(new RgbColor(10, 0, 102, 204), 1));

When rendered this shows a gradient with full opacity (attached) when it would be expected to be near transparent.

Thanks,
Chris

UI for WPF R2 2016 SP1

PdfProcessing

answered on 16 Sep 2016

1 answer

253 views

ReplaceText in RadFlowDocumentEditor

Hi,

My name is Lokesh G, I got struck while using this Replace Method in RadFlowDocumentEditor. It's showing some error at ReplaceText().

Can you help me to over come this...

Error Message: Onhover on ReplaceText seeing the below message

RadFlowDocumentEditor doesn't contain a definition for ReplaceText and no extension method 'ReplaceText' accepting a first argument of type RadFlowDocumentEditor could not be found

How I used and Declared it:
RadFlowDocumentEditor editor = new RadFlowDocumentEditor(document);

editor.ReplaceText(FindWhatTextBox.Text, ReplaceWithTextBox.Text, MatchCaseCheckBox.Checked, MatchWholeWordCheckBox.Checked);

WordsProcessing

answered on 14 Sep 2016

3 answers

868 views

IWorkbookExporter?

You've officially made things confusing by having the different libraries for the spreadsheet. I need a good (current) example on how to do an easy import and export of a Spreadsheet that I am using/showing in a Spreadsheet Control. Also, I'll be saving the spreadsheet to a SQL table so do you have an example where I don't have to write out to a FileStream first? I'd like to go directly from a Stream to a byte array without writing to the file system.

SpreadStreamProcessing

answered on 13 Sep 2016

6 answers

463 views

Import HTML then Export to PDf

I'm sure this is possible but I cant quite get the provider usage figured out. I have a string of HTML I want to output as a PDF . This does not work, what am i doing wrong?

protected void test(string htmlString)

{
HtmlFormatProvider htmlDoc = new HtmlFormatProvider();
htmlDoc.Import(htmlString);
byte[] renderedBytes = null;

IFormatProvider<RadFlowDocument> formatProvider = new PdfFormatProvider();
using (MemoryStream ms = new MemoryStream())
{
formatProvider.Export(htmlDoc, ms); // this is invalid
renderedBytes = ms.ToArray();
}
Response.Clear();
Response.AppendHeader("Content-Disposition", "attachment; filename=ExportedFile" + ".pdf");
Response.ContentType = "application/pdf";
Response.BinaryWrite(renderedBytes);
Response.End();