Telerik Document Processing Libraries
Create & Edit PDF, Word & Excel Files in Web, Desktop & Cross-Platform .NET Apps
Download package includes 30-day free trial of Telerik DevCraft.
Overview
The Telerik Document Processing is a set of libraries, which include an IDE-integrated AI Coding Assistant, agentic tools for building intelligent workflows, and a complete set of APIs, for manipulation of the most commonly used flow, fixed and spreadsheet document formats for web and desktop .NET applications without relying on third party software (MS Office, Adobe Acrobat).
AI Tools for Telerik Document Processing Libraries
AI Coding Assistant for Developer Productivity
Get production-quality code when working in your favorite IDE:
- Automates repetitive tasks such as generating code for adding or configuring DPL features.
- Finds answers to questions from the API documentation and other knowledge repositories.
- Troubleshoots problems related to the component libraries.
AI-Ready Document Processing Workflows
- Agentic Tools (Preview): Purpose‑built .NET APIs for agentic document workflows. Enable AI agents to analyze, extract, edit, and generate Excel and PDF files—run aggregates, transform content, and convert formats directly inside your app.
- GenAI-powered document insights: Summarize content and ask questions with AI delivering answers based on the document itself.
Key Features
UI-Independent
The libraries are UI-Independent and cover all .NET technologies, from desktop and web to mobile, and can be deployed in client, server-side and cloud apps.
No need for 3rd party software – No Server Deployment Fees
Enable document manipulation within your application without relying on 3rd party software such as Microsoft Office or Adobe Acrobat Reader
Convenient API
Add document processing capabilities to your applications in no time by utilizing the convenient APIs. Enable creating, editing and converting documents with just a few lines of code.
Any document. Any Business.
The Telerik Document Processing is suitable for various business cases and scenarios, where document creation or manipulation is required.
Performance and Speed
The libraries are decoupled from UI and can provide a great performance in different cases, especially when dealing with huge excel files.
Support for Variety of File Formats
The Telerik Document Processing includes 5 libraries for manipulating PDF, Word, Excel and ZIP files in your application.
Awards
Greatness—it’s one thing to say you have it, but it means more when others recognize it. Telerik is proud to hold the following industry awards.
PDF Processing
With the PDF Processing Library, you can enable the creation, edit and export of PDF files in your .NET applications. The library supports interactive forms and form filling, as well as digital signatures.
- Generate PDF documents from scratch
- Agentic tools to create, analyze, and transform PDF documents
- Get GenAI-powered document insights
- Edit existing documents – delete headers/footers or watermarks, change images and colors
- Add content to existing document: аll features of the existing PDF document are preserved, and just some content is added
- Merge document pages: Combine pages from different documents into a single document
- Interactive forms - automatic filling of forms (e.g. tax forms) - automatic extraction of data from already filled forms
- Digital signatures - sign PDF documents using X.509 certificates - validate signatures including certificate chain and revocation checks - add trusted timestamps via timestamp servers for long-term validation - support external signing with hardware security modules or third-party providers - apply multiple signatures with incremental updates without invalidating previous ones
Words Processing
Telerik Words Processing is a processing library, which allows for Word-like document manipulations in .NET applications and enables end-users to create, modify and export documents to various formats.
- Create and modify documents from various document formats: DOCX, RTF, HTML, plain text
- Convert documents to PDF (export only)
- Convert between the different formats
- GenAI-powered document insights
- Full rich-text capabilities
- Font and paragraphs formatting, tables, images, comments, hyperlinks, fields and a lot more are supported
- Mail merge: Generate documents using template document and a data set, e.g. "Thank you" letters to all employees
- Merge different documents into a single one controlling how their styles should be merged
Spread Processing
The Telerik Spread Processing library enables you to work with spreadsheet documents in your application – create ones from scratch, modify existing documents or convert between the most common spreadsheet formats. You can save the generated workbook to a local file, stream, or stream it to the client browser.
- Create from scratch and modify existing documents from spreadsheet formats: XLSX, CSV
- Agentic tools to automate, analyze, and generate spreadsheet content
- Export to PDF
- Convert between the different formats
- Extracting and populating cells with data
- Built-in support for computation of more than 200 functions, like SUM, AVERAGE, etc.
- Custom functions could be added as well
- Protection from editing operations using password/removing such password
- Most of the important Excel features are supported - data validation – restrict the types of input to cells (e.g. allow only numbers) - grouping to organize data (e.g. collapse some rows/columns) - filtering, sorting, freeze panes, hidden rows, and more
Spread Stream Processing
With the Telerik Spread Stream Processing library you can generate big spreadsheet documents with great performance and minimal memory footprint in your .NET applications. To guarantee for excellent performance, the library writes the spreadsheet content directly to a stream without creating and preserving the spreadsheet document model in memory.
- Specialized for fast generation of huge (even 1M+ rows) XLSX and CSV documents
- Create document from scratch or append new sheets to existing document
- Faster than Spread Processing and with minimal memory footprint
ZIP Library
With RadZipLibrary you can compress data like images, DOCX, PDF, or any other type of files and send them over the wire. Thus, you will achieve fast and secure transactions.
- Create ZIP files
- Extract ZIP files
- Modify existing ZIP files – add/remove or update the files inside the archive
- Support for large files (over 4GB)
- Support for encryption: You can protect ZIP file with password
Pricing and Licensing
Available as part of a bundle
DevCraft UI
renewable at 50% of the list price
Or with an Individual
Product
The libraries are subject of the license under which you've obtained the assemblies.
What's New in Telerik Document Processing Libraries
Agent Tools: AI-Ready Document Processing Workflows
The DPL Agentic Tools in Preview let users extract structured data, edit content, convert formats, generate new Excel or PDF files and perform analysis on Excel documents directly inside your .NET app with no separate services required.
MIME Type of Embedded Files in DPL
Unlock precise control over embedded content with explicit MIME type support in Telerik Document Processing Libraries, making it easy to accurately declare XML invoices, JSON payloads, CSV datasets, and other structured formats within your PDF documents.
Digital Signing with European Commission Validation Standards
Digital Signatures are now DSS‑compliant enabling developers to create PDFs that pass the EU’s official DSS validator without extra tools or manual checks.
Support and Learning
Blog post
PDF Stream Processing - Reliable and Efficient Processing of PDF Files
If you are an ASP.NET developer, make that breakneck pace with An innovative approach for fast, memory efficient and reliable document processing of PDF files—part of the latest Document Processing Library in R1 2017.
Blog post
4 Ways to Export from WPF and WinForms to Word and PDF Files
Looking to add functionality in your .NET apps to export data to Word and PDF? Learn four ways to do this with just a little code.
Getting Started
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