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Convert 100+ file formats to PDF with a single .NET SDK

Integrate powerful document conversion into your .NET applications to handle 100+ file formats. Benefit from a robust engine with advanced features and a streamlined API that simplifies development.



All-in-one PDF conversion engine

Benefit from a quick, lightweight, and trustworthy PDF conversion engine that enables you to transform more than 100 document and image formats — including DOCX, XLSX, TXT, TIFF, JPEG, and PNG — to PDF format in your desktop, web, or mobile applications.

All-in-one PDF conversion engine
Extensive format support

Convert popular office documents (DOCX, XLSX, TXT), image formats (JPEG, PNG, TIFF, GIF, BMP, WMF), HTML, and more.

PDF search compliance

Ensure converted PDFs are text-searchable (OCR is optional) and comply with PDF/A standards for long-term archiving.

Image optimization

Optimize image quality, color, and DPI. Resize, remove blank pages, and apply compression algorithms to reduce file size.

Text extraction

Extract searchable, reusable text content from any PDF quickly and accurately for indexing, analysis, or repurposing.

File optimization

Reduce file sizes with JBIG2 and MRC compression. Create grayscale PDFs, build portfolios, and convert scans while preserving quality.

Built for performance

Deploy on AnyCPU with 32-bit and 64-bit support. Process documents at scale with full multithreading capabilities.

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See it in action

Upload your document to convert it to PDF.

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How to use

Download and install the GdPicture.NET package to access compiled demo applications and multi-language sample projects with full source code.

Explore demo apps
Find compiled demo applications in
\Samples\Bin\.
Explore multi-language source code
Find C# and VB.NET demo apps and source code in \Samples\WinForm\.
Visit reference guide
Explore other code snippets within the online reference guide.

Examples of usage

using GdPictureDocumentConverter gdpictureDocumentConverter = new GdPictureDocumentConverter();
// Load the source document.
gdpictureDocumentConverter.LoadFromFile(@"C:\temp\source.docx", GdPicture14.DocumentFormat.DocumentFormatDOCX);
// Save the output in a new PDF document.
gdpictureDocumentConverter.SaveAsPDF(@"C:\temp\output.pdf");

Trusted by 3,000+ customers and Fortune 500 companies

15Y+
More than 15 years of experience developing our SDK
10K+
Trusted by more than 10,000 developers


Frequently asked questions

What types of files can be converted to PDF using the GdPicture.NET document converter SDK?

The SDK supports conversion from a wide array of file formats, including:

  • Office documents — Word, Excel, PowerPoint
  • Images — JPEG, PNG, TIFF, BMP
  • CAD files — DWG, DXF
  • SVG and DICOM formats

This versatility allows for seamless integration into applications requiring diverse document processing capabilities.

Can the SDK handle batch processing for converting multiple documents simultaneously?

Yes. The GdPicture.NET document converter SDK is designed to efficiently process multiple documents in batch mode. This feature streamlines workflows by enabling the simultaneous conversion of numerous files, thereby enhancing productivity and operational efficiency.

Does the SDK support the creation of PDF/A-compliant documents for long-term archiving?

Absolutely. The SDK enables the generation of PDF/A-compliant files, adhering to ISO standards for long-term archiving. This ensures documents remain accessible and retain their integrity over extended periods, which is crucial for legal and regulatory compliance.

Is it possible to merge different file types into a single PDF document using the SDK?

Yes. The SDK provides functionality to combine various file formats into a single PDF. This includes merging documents like Word files, Excel spreadsheets, images, and more into one cohesive PDF document, simplifying document management and distribution.

How does the SDK ensure the quality and fidelity of converted documents?

The GdPicture.NET document converter SDK employs advanced rendering techniques to maintain high quality and fidelity in converted documents. It accurately preserves the original layout, fonts, images, and other elements, ensuring that the resulting PDFs are true representations of the source files.

Is GdPicture’s document conversion engine consistent with Nutrient’s web and mobile SDKs?

Yes. GdPicture.NET is part of the Nutrient product family, and the document conversion technology is shared across Nutrient’s desktop, web, and mobile SDKs, enabling consistent format transformation on all platforms.

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