Draw RTF (Rich Text Format) Text in PDF

[procamSpire]

Hi Spire!
Is there any way how to draw RTF text data onto PDF page?

As an example, the following RTF text data:
{\rtf1\ansi{\fonttbl\f0\fswiss Helvetica;}\f0\pard
This is some {\b bold} text.\par
}

is a document which would be rendered like this when read by a program that supports RTF:
This is some bold text.

Source: https://en.wikipedia.org/wiki/Rich_Text_Format
Best regards,
Vladimir

[Amber.Gu]

Hi,

Thanks for your inquiry.
Sorry that Spire.PDF doesn't support to draw rtf text on the page of an existing PDF. If you want to convert Rtf file to Pdf file, please try to use Spire.Doc(Now the latest version is Spire.Doc Pack(hot fix) Version:7.11.1). Or you could append rtf string to the Word file then convert it to Pdf file. Below is the code for your reference.

Code: Select all

            //Convert Rtf file to Pdf file
            Document doc = new Document();
            doc.LoadFromFile(@"B0009STM.rtf", Spire.Doc.FileFormat.Rtf);
            doc.SaveToFile(@"resultCore.pdf", Spire.Doc.FileFormat.PDF);

            //Append rtf string to the Word file then convert it to Pdf file.
            doc.LoadFromFile(@"……\filename.docx");
            string rtfCode = "your rtf code";
            doc.Sections[0].Paragraphs[0].AppendRTF(rtfCode);
            doc.SaveToFile(@"resultCore-1.pdf",Spire.Doc.FileFormat.PDF);

Best wishes,
Amber
E-iceblue support team

[Amber.Gu]

Hi,

Greetings from E-iceblue.
Have you tried the code I offered you last time? Does it solve your issue? Could you please give us some feedback at your convenience?

Best wishes,
Amber
E-iceblue support team

[procamSpire]

Hi,

Greetings from E-iceblue.
Have you tried the code I offered you last time? Does it solve your issue? Could you please give us some feedback at your convenience?

Best wishes,
Amber
E-iceblue support team

Hi Spire!
Is there any way how to draw RTF text data stored in string variable or buffer and draw it onto PDF page using Spire.PDF?
We do not want to use Spire.Doc.
Best regards,
Procam

[Amber.Gu]

Hi,

Thanks for your reply.
Sorry that Spire.PDF doesn't support to convert RTF to PDF. I'm afraid at present the only way to convert RTF to PDF is to use Spire.Doc(now the latest version is Spire.Doc Pack(hot fix) Version:7.12.23).
Our sales team just sent you a one-month free license of Spire.Doc to help you remove the warning information. Please check and apply it to have a better evaluation on our product. Here is a guide for you: https://www.e-iceblue.com/Tutorials/Licensing/Licensing.html.

Best wishes,
Amber
E-iceblue support team

[procamSpire]

Hello.
I think that you do not understand me. I do not want to convert RTF file to PDF,
but I have RTF formatted text in string variable/buffer and I want to draw it onto PDF page on specific position x, y.

For example RTF formatted text looks like:

Code: Select all

{\rtf1\ansi\deff0
{\colortbl;\red0\green0\blue0;\red255\green0\blue0;}
This line is the default color\line
\cf2
This line is red\line
\cf1
This line is the default color
}

RTF formatting uses control characters escaped with backslashes along with nested curly braces.

So it is some kind of styled text like the HTML Styled Text (PdfHTMLTextElement) which is allready implemented in Spire.PDF
https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Text/How-to-Insert-HTML-Styled-Text-to-PDF-in-C-VB.NET.html

you can see for some details here: https://chrisbenard.net/2014/08/20/extract-text-from-rtf-in-c-net/

It is possible to implement this another kind of styled text type - RTF formatted text to Spire.PDF?
Thank you.
BR

[Sofia.Yang]

Hello,

Thanks for your message.
I'm sorry that currently our Spire.Pdf doesn't have a direct way to add RTF text to the PDF specified location. Since we have a 7-Day Chinese Spring Festival Holiday during 02/11/2021-02/17/2021, once we come back to work on Feb 18, 2021, I will further confirm with dev colleagues if there is any workaround approach to achieve it. Thanks for your patience.

Sincerely,
Sofia
E-iceblue support team

[Sofia.Yang]

Hello,

Sorry for the truth that our Spire.Pdf doesn't provide the method to insert RTF text into PDF anymore. Please use our Spire.Doc instead to insert rtf string to Word document. Please download the latest Spire.Doc (Spire.Doc Pack(hot fix) Version:9.2.0) and use the following code to have a try.

Code: Select all

Document doc = new Document();
Section section = doc.AddSection();
// Add a paragraph to the section.
Paragraph para = section.AddParagraph();
//Declare a String variable to store the RTF string.
String rtfString = @"{\rtf1\ansi\deff0 {\fonttbl {\f0 hakuyoxingshu7000;}}\f0\fs28 Hello, World}";
// Append RTF string to paragraph.
para.AppendRTF(rtfString);
//Save to PDF file.
doc.SaveToFile("Output.pdf", FileFormat.PDF);

Sincerely,
Sofia
E-iceblue support team