PDFのニュース

自然言語を使用してPDFテーブルデータを抽出

8月 28, 2025
Document Solutions for PDF v8.2では、OpenAIとのシームレスなAI統合が追加され、非構造化PDFを使用可能なデータに変換

Document Solutions for PDF (DsPdf) by MESCIUS is a software development toolkit that provides .NET Core libraries and a JavaScript PDF viewer for manipulating and displaying PDFs. DsPdf enables developers to create, edit, annotate, and redact PDF documents directly within web applications. The included DsPdfViewer component offers a feature-rich, cross-platform solution for viewing and interacting with PDFs in modern browsers on various operating systems, including mobile devices.

The Document Solutions for PDF v8.2 update introduces a new AI-powered capability to extract tables from documents, enabling developers to convert unstructured tabular data in PDFs into structured, machine-readable formats with ease. By leveraging natural language prompts through OpenAI or Azure OpenAI services, this feature eliminates the need for manual parsing or coordinate-based extraction, reducing development effort. It provides reliable output even from PDFs with complex layouts or inconsistent formatting.

To see a full list of what's new in version 8.2, see our release notes.

Document Solutions for PDF is licensed per developer and is available in several license options for differing distribution needs. Team licenses are also available for multiple developers within the same organization. See our Document Solutions for PDF licensing page for full details.

Document Solutions for PDF is available to buy individually or as part of Document Solutions .NET Bundle.

JavaScriptアプリにPDF変換を埋め込み

8月 27, 2025
PDFコンポーネントをJavaScriptアプリの変換サポートと統合すると、ユーザーはPDFと他のファイル形式の間でドキュメントを変換可能

JavaScript PDF components that support format conversion play a critical role in modern web and enterprise applications, allowing developers to programmatically generate, manipulate, and transform documents within the browser or on the server. These tools simplify workflows that require format interoperability, such as generating printable reports from web content, archiving dynamic documents, or extracting data for analysis. Their ability to convert between PDF and other widely used formats ensures compatibility across systems, supports digital transformation goals, and enhances document handling efficiency.

Common conversions include:

  • HTML to PDF: Render entire web pages or fragments into paginated PDF documents while preserving layout, styles, and interactive elements.
  • PDF to Excel: Extract tabular data from PDFs, converting it into XLS or XLSX files for data analysis or re-use in spreadsheet applications.
  • PDF to Image: Convert each page of a PDF into image formats such as PNG or JPEG, useful for previews, thumbnails, or annotations.
  • RTF to PDF: Convert Rich Text Format files into PDFs to preserve text styling and document structure in a widely accepted format.
  • PDF to PowerPoint: Convert PDF content into PPT or PPTX format, enabling slide-based presentation of document content.
  • PDF to SVG: Translate PDF pages into scalable vector graphics, ideal for embedding high-quality visuals in web pages.
  • Word to PDF: Transform DOC or DOCX files into PDFs, retaining formatting, tables, and images for standardized sharing and storage.

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

Explore JavaScript PDF Conversion

ReactアプリケーションでPDFナビゲーションを改善する

8月 19, 2025
サムネイルナビゲーションを使用すると、ユーザーはスクロールしたり検索機能を使用したりすることなく、PDFの特定のページを視覚的にすばやく見つけて参照可能

Thumbnail navigation is a feature often found in a PDF viewer that displays miniature representations of each page of the PDF file, typically in a side panel or dedicated section, that users can scroll through and navigate to the desired page by clicking on the relevant preview image. This functionality assists with identifying content layout and structure at a glance. By allowing users to visually scan through and select a specific page it simplifies the process of locating content at speed, especially in long or detailed files, and without having to scroll or use search functions.

Several React PDF viewer components offer thumbnail navigation, including:

  • Wijmo PDFViewer (part of Wijmo by MESCIUS) lets users preview pages as thumbnails, enabling efficient PDF navigation and quick access to specific content in React apps.
  • PrizmDoc Viewer (part of PrizmDoc by Accusoft) also supports React and facilitates fast page access with thumbnail previews, helping users identify and jump to relevant sections.
  • Syncfusion PDF Viewer (part of Syncfusion Essential Studio Enterprise) equips React apps with a lightweight PDF viewing component that supports quick navigation via thumbnails.

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

Compare React PDF Viewer Components

取り消し線で変更を明確にマーク

8月 15, 2025
取り消し線の注釈はPDFの削除や編集を明確にマークし、チームがドキュメントをより効果的に共同作業およびレビュー可能

At a high level, strikethrough annotations, also known as strikeout or line-through markups, enable reviewers to visually indicate deletions or corrections within PDF text while preserving the underlying content. This annotation type belongs to the broader category of text markup annotations, which also includes highlighting, underlining, and squiggly underlines. Developers can customize properties like color, opacity, and associated notes or author metadata. Strikethrough annotations support interactive use cases, such as insert/edit/delete, event handling, and rendering consistency across different rendering engines.

Several WinForms PDF controls offer support for strikethrough annotations including:

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

Compare WinForms PDF Controls

ブラウザーでPDFフォームフィールドを作成して編集

8月 8, 2025
JavaScript PDFビューアを使用して、PDFフォームでフィールドを直接追加、名前変更、または削除。外部エディターの必要なし

In JavaScript-based PDF viewers, the ability to add, edit, remove, and rename form fields within Acrobat-style PDF forms allows developers and users to dynamically manage form structure and content directly within the browser. This functionality enables real-time customization of interactive PDF documents without requiring external PDF editors. By supporting operations like inserting new text fields, adjusting existing ones, deleting unused fields, or updating field names to match data schemas, this feature significantly enhances the flexibility and usability of PDF forms. It benefits workflows such as document automation, digital signatures, and data collection, particularly in applications where user-driven or programmatic form manipulation is essential for tailoring documents to specific tasks or data sources.

Several JavaScript PDF viewer components allow you to add, edit and remove form fields from PDF forms, including:

  • Document Solutions for PDF by MESCIUS includes a JavaScript PDF viewer in the Professional edition that enables developers to modify and manage form fields.
  • PrizmDoc Viewer (part of PrizmDoc by Accusoft) provides an HTML5 document viewer which lets you adjust, rename, and delete PDF form fields within a JavaScript interface.
  • Syncfusion PDF Viewer (part of Syncfusion Essential Studio Enterprise) equips JavaScript applications with PDF form functionality, including interactive form field manipulation.

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

Compare JavaScript PDF Viewer Components