Generate Multi-Language Indic PDF Documents in ASP.NET Core Using Syncfusion® .NET PDF Library

A lightweight ASP.NET Core sample that demonstrates how to generate PDF documents in multiple Indic languages using the Syncfusion .NET PDF Library. The application lets users pick a language from a dropdown, click Generate PDF, and instantly download a sample document with a greeting and a full paragraph rendered correctly using an embedded Unicode TrueType font and complex-script shaping.

Pages

Page	Route	Description
PDF Generator	/ (PDF/Index)	Select a language, click Generate PDF, and the sample PDF downloads automatically.

Supported languages

Language	Sample heading	Bundled font (wwwroot/fonts)
Hindi	नमस्ते दुनिया!	NotoSansDevanagari-Regular.ttf
Sanskrit	नमस्ते जगत्!	NotoSansDevanagari-Regular.ttf
Tamil	வணக்கம் உலகம்!	NotoSansTamil-Regular.ttf
Telugu	నమస్కారం ప్రపంచము!	NotoSansTelugu-Regular.ttf
Kannada	ನಮಸ್ಕಾರ ಜಗತ್ತೇ!	NotoSansKannada-Regular.ttf
Malayalam	ഹലോ ലോകം!	NotoSansMalayalam-Regular.ttf

Features

• Language dropdown with six Indic languages
• One-click Generate PDF button — the PDF downloads automatically
• Unicode TrueType (.ttf) fonts bundled in wwwroot/fonts and embedded into the PDF
• Complex-script shaping enabled via PdfStringFormat.ComplexScript = true
• Text rendered with graphics.DrawString() on an A4 page
• Styled PDF: gradient header band, divider, paragraph block, and footer
• Friendly one-paragraph sample text for every supported language

Key code

//Create a new PDF font instance (Unicode TTF bundled in wwwroot/fonts)
PdfFont pdfFont = CreateFont(language, 12f);

//Set the format for string
PdfStringFormat format = new PdfStringFormat();

//Set the format as complex script layout type
format.ComplexScript = true;

//Draw the text
graphics.DrawString(language.Paragraph, pdfFont, PdfBrushes.Black,
    paragraphRect, format);

Project structure

pdfcomplexscriptsample
├── Controllers
│   ├── HomeController.cs
│   └── PdfController.cs
├── Models
│   ├── PdfGenerationModel.cs
│   └── ErrorViewModel.cs
├── Services
│   ├── PdfGenerationService.cs
│   └── LanguageCatalog.cs
├── Views
│   ├── Pdf
│   │   └── Index.cshtml
│   └── Shared
│       ├── _Layout.cshtml
│       └── Error.cshtml
├── wwwroot
│   ├── css
│   │   └── site.css
│   └── fonts
│       ├── NotoSansDevanagari-Regular.ttf
│       ├── NotoSansKannada-Regular.ttf
│       ├── NotoSansMalayalam-Regular.ttf
│       ├── NotoSansTamil-Regular.ttf
│       └── NotoSansTelugu-Regular.ttf
├── Properties
│   └── launchSettings.json
├── Program.cs
├── appsettings.json
└── pdfcomplexscriptsample.csproj

Run

cd pdfcomplexscriptsample
dotnet restore
dotnet run

Then open https://localhost:7223 (or http://localhost:5207).

Syncfusion license

Set your Syncfusion license key via:

• Environment variable SYNCFUSION_LICENSE_KEY, or
• The SyncfusionLicenseProvider.RegisterLicense(...) call in Services/PdfGenerationService.cs.

A free community license is available at https://www.syncfusion.com/products/communitylicense.

Fonts

The app ships Noto Sans Unicode fonts for Devanagari, Tamil, Telugu, Kannada, and Malayalam in wwwroot/fonts. To render additional languages, drop the matching Noto Sans <Script>-Regular.ttf into that folder and add a new entry to the LanguageCatalog class in Services/LanguageCatalog.cs. Fonts are provided under the SIL Open Font License — see https://fonts.google.com/noto for details.