PDF 新闻

在用于 .NET 的 PDF 处理应用程序中启用 OCR

6月 27, 2025
Telerik Document Processing Libraries 2025 Q2 更新通过支持光学字符识别（OCR）增强了 PDF 处理库。

Telerik Document Processing is a suite of document processing libraries designed for web, desktop and cross-platform .NET applications. It enables developers to create, read, edit, and convert a wide range of document formats, including PDF, DOCX, XLSX, ZIP and HTML, without relying on external software such as Microsoft Office or Adobe Acrobat. These libraries are independent from the user interface (UI) and are built for high performance and accuracy, providing convenient APIs that give flexibility and control so you can integrate document processing capabilities into your applications with only a few lines of code.

The Telerik Document Processing Libraries 2025 Q2 (2025.2.520) update adds Optical Character Recognition (OCR) support to the PDFProcessing library, enabling developers to extract machine-readable text from scanned PDFs and images directly within .NET applications. This functionality facilitates the conversion of previously inaccessible content, such as scanned contracts, forms or handwritten notes, into editable and searchable machine-encoded text, providing users with extracted text along with a PDF containing the image with selectable text. By integrating OCR capabilities, developers can now streamline data extraction and analysis tasks, reducing the need for manual data entry and improving overall efficiency in handling diverse document types.

To see a full list of what's new in 2025 Q2 (2025.2.520), see our release notes.

Telerik UI is licensed per developer and has two licensing models: an annual Subscription License and a Perpetual License. The Subscription license provides access to the latest product updates, technical support, and exclusive benefits for a flat annual fee, and must be renewed to continue using the software. The Perpetual license is a one-time purchase granting access to the current released version and includes a one-year subscription for product updates and technical support. After this initial period, users can choose to renew the subscription element to continue receiving updates and support; otherwise, they may continue using the installed version available during their active subscription term but will forgo future updates and support. See our Telerik DevCraft Ultimate licensing page for full details.

The Telerik Document Processing Libraries are available in the following products:

完全按照显示的方式采集文档

6月 24, 2025
打印并保存为 PDF 可确保您的应用程序能够生成可靠、高质量的文档，而不受操作环境的影响。

Printing to PDF allows users to save an existing document, webpage, or file as a PDF by using a virtual printer. It captures the document exactly as it would appear if printed, preserving the formatting, layout, and styling. The resulting document is typically static and cannot be edited, ideal for archiving or sharing finalized versions of a document. This feature is particularly useful for standardizing outputs across different software, ensuring consistent presentation, and providing an easy way to generate PDFs from files that do not natively support the format.

Several WinForms PDF controls offer the ability to print/save to PDF including:

  • Telerik UI PDF for WinForms (part of Telerik UI for WinForms) enables developers to print or export UI content directly to PDF files with layout fidelity and output options.
  • ComponentOne Studio WinForms PDF (part of ComponentOne Studio WinForms by MESCIUS) offers native support for saving forms, controls, and reports as PDF.
  • LEADTOOLS PDF provides a robust API for printing or exporting documents to PDF, supporting both vector and raster content, with configurable print settings and security options.
  • ImageGear for .NET by Accusoft allows saving rendered documents or image-based content directly to PDF formats, with control over compression and output resolution.

For an in-depth analysis of features and price, visit our WinForms PDF controls comparison.

Compare WinForms PDF Controls

允许用户轻松填写 PDF 表单

6月 19, 2025
通过允许直接在 PDF 中编辑字段增强用户交互，以实现快速高效的数据输入。

Form filling in a PDF Viewer enables users to interact with editable fields such as text boxes, checkmarks, radio buttons, and selection lists - right inside the document. This functionality is ideal for scenarios like contracts, surveys, and registration forms, where structured input is essential. By integrating these capabilities, developers can improve user interactions and allow form submission without leaving the application, enhancing data capture and eliminating the need for external tools.

Several WPF PDF Viewers feature support for form filling, including:

  • Telerik UI PDF for WPF (part of Telerik UI for WPF) enables editable text, checkboxes, radio buttons, and saving completed PDF forms.
  • DevExpress WPF PDF Viewer (part of DevExpress WPF) allows you to fill, highlight, import, and export PDF form fields.
  • Syncfusion WPF PDF (part of Syncfusion Essential Studio Enterprise) allows you to fill PDF forms with text fields, checkboxes, and dropdowns.

For an in-depth analysis of features and price, visit our comparison of WPF PDF viewers.

Compare WPF PDF Viewers

精确轻松地导航 PDF

6月 10, 2025
内置的导航工具让用户轻松浏览 PDF 文档，使得即使是复杂文件也更易于访问和理解。

PDF navigation features play a crucial role in enhancing the usability and accessibility of digital documents. In modern PDF components, navigation tools are designed to provide intuitive access to document content, helping users locate specific sections, pages, or topics quickly. These tools are particularly important in lengthy or complex PDFs such as manuals, reports, and eBooks, where efficient navigation can significantly improve the reading experience and reduce time spent searching for information.

Common features include:

  • Bookmark navigation allows users to jump to predefined sections through a sidebar of bookmarks that often mirrors the document's structure.
  • Hyperlink navigation supports both internal links within the document and external web links, facilitating direct access to related information or resources.
  • Table of Contents navigation mirrors traditional print documents by listing chapters or sections with interactive links, helping users to understand the document's structure at a glance and move directly to areas of interest.
  • Thumbnail navigation provides visual page previews, enabling users to scroll through and select pages more easily, especially in graphically rich or page-specific content.

For an in-depth analysis of features and price, visit our .NET PDF components comparison.

Explore .NET PDF Navigation Features

在任何 PDF 文档中即时查找内容

6月 4, 2025
具有文本搜索功能的 .NET Blazor PDF 查看器组件有助于用户快速找到特定单词或短语，并更有效地导航文档。

Text Searching in a PDF Viewer .NET Blazor component enables users to locate specific words, terms or phrases within a PDF document. This capability enhances document navigation and accessibility by enabling users to quickly identify and move to relevant content without manually scanning each page. Typically supporting case-sensitive and whole-word matching options, the search can be triggered through UI controls and backend logic, making it a flexible feature for applications that handle large or complex PDF files. This is particularly beneficial for developers building document-heavy applications, as it improves user efficiency and ensures precise content discovery.

Several Blazor PDF Viewers allow users to search for text, including:

  • ComponentOne Studio FlexViewer (part of ComponentOne Studio Blazor Edition by MESCIUS) lets you search PDF content, highlighting results to help users locate key terms.
  • Telerik UI PDF Viewer for Blazor (part of Telerik UI for Blazor) enables accurate keyword searching, enhancing user interaction and speeding up content retrieval in PDF files.
  • Syncfusion Blazor PDF (part of Syncfusion Essential Studio Enterprise) facilitates fast, intuitive text searching within PDF documents.

For an in-depth analysis of features and price, visit our comparison of Blazor PDF viewers.

Compare Blazor PDF Viewers