PDFのニュース

楕円形状を使用して、集中的なドキュメントレビュー実行

9月 19, 2025
楕円注釈は、PDFドキュメント領域にフラグを立てたりコメントしたりするための非侵入的な方法を提供し、カスタマイズ可能な境界線と塗りつぶしをサポート

Ellipse annotations in PDF viewer components are shape‑based markups that allow users to draw oval or circular outlines (or filled ellipses) on PDF pages. Such annotations are valuable in highlighting regions, drawing attention to content, or visually marking up documents for review without altering the underlying text. They generally include settings for border color, line width, fill color or transparency, and may offer popup notes, captions, or comments associated with the ellipse shape. The feature supports both interactive use and programmatic control in many viewers.

Several React PDF viewer controls offer support for ellipse annotations including:

  • Document Solutions for PDF by MESCIUS provides a CircleAnnotation class allowing users to place an ellipse on a page and configure its position.
  • Syncfusion PDF Viewer (part of Syncfusion Essential Studio Enterprise) supports ellipse shape annotations and customize stroke and fill color, thickness and opacity.
  • PrizmDoc Viewer by Accusoft allows users to draw, edit, or delete ellipse annotations, add comments, and control the display settings of those annotations.

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

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WPFで画像からPDFへの変換を有効にする

9月 16, 2025
WPFデスクトップアプリケーションに、JPEG、PNG、TIFFなどの画像ファイルを、普遍的にアクセス可能なPDF形式に変換する機能を装備

Image to PDF conversion is a common feature in document processing that enables the transformation of static image files, such as JPEG, PNG, or TIFF formats, into a Portable Document Format (PDF) file. PDFs support consistent rendering across different devices and platforms and are compact, secure, and easily viewable. This conversion is widely used to preserve visual content, including scanned documents, receipts, visual records, photos, or graphical outputs while making them easier to share, annotate, archive, or print in a universally accessible format.

Several WPF PDF components allow you to convert images to PDF, including:

  • ComponentOne Studio WPF PDF (part of ComponentOne Studio WPF by MESCIUS) offers the ability to render images directly onto PDF pages with control over sizing and position.
  • Telerik UI PDF for WPF (part of Telerik UI for WPF) supports desktop applications in the creation of PDF documents from image files using its PdfProcessing library.
  • IronPDF for .NET by Iron Software can equip WPF applications with the ability to convert single or multiple image files into PDF pages, supporting various image formats.
  • Syncfusion WPF PDF (part of Syncfusion Essential Studio Enterprise) delivers versatile image-to-PDF conversion functionality, including BMP, EMF and ICON formats.

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

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PDFでのRTLサポートで正確なレイアウトを提供

9月 11, 2025
右から左(RTL)スクリプトの組み込みサポートにより、コンテンツをグローバル言語でエクスポートする際に、一貫したPDFレイアウト、方向、配置を保証

Right-to-left (RTL) language support in PDF rendering refers to the ability to correctly display and align text written in languages such as Arabic, Hebrew, Persian, and Urdu, which are read from right to left. This support ensures that when content is exported to PDF, the text direction, alignment, and overall layout reflect the natural flow of these languages. It plays a critical role in creating documents that are both readable and culturally appropriate, particularly in multilingual or region-specific applications. By maintaining proper structure and formatting, RTL support reduces the need for manual adjustments and helps developers deliver professional-quality documents. Common use cases include generating invoices, reports, or educational materials for users in the Middle East or other RTL-speaking regions, as well as supporting international communication within global organizations.

Several .NET PDF components include RTL support, including:

  • Document Solutions for PDF by MESCIUS lets you generate, edit, and convert PDFs with full multilingual and RTL script alignment and precise layout support.
  • XFINIUM.PDF CROSS PLATFORM EDITION enables cross‑platform PDF creation and editing with robust RTL rendering and proper text wrapping for right‑to‑left content.
  • Aspose.PDF for .NET lets you create PDFs with full right-to-left text rendering, including Arabic and Hebrew script alignment and formatting.

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

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PDFドキュメントに1Dバーコードを作成

9月 8, 2025
.NETアプリケーションに、Code 39、Code 128、EAN-13などの1Dバーコードを生成し、PDFファイルに埋め込む機能を拡張することが出来ます。

1D Barcode creation in a .NET PDF component refers to the ability to generate linear barcodes—such as Code 39, Code 128, or EAN-13—directly within PDF documents through a .NET application. This feature allows developers to integrate barcode generation into automated workflows for tasks like labeling, inventory tracking, and document indexing. By embedding machine-readable data into PDFs, it enhances data accuracy, speeds up scanning processes, and supports seamless integration with backend systems without requiring external barcode tools or libraries.

Several .NET PDF components allow you to create 1D barcodes, including:

  • DevExpress PDF Document API (part of DevExpress Office File API) enables you to embed 1D barcodes directly into PDFs using high-quality rendering and customizable options.
  • Document Solutions for PDF (by MESCIUS) provides .NET apps with barcode generation capabilities to allow the creation of PDF files with embedded 1D barcodes.
  • XFINIUM.PDF CROSS PLATFORM EDITION is an advanced library for cross-platform PDF development that supports the insertion of 1D barcodes into PDF documents.
  • Syncfusion .NET MAUI PDF (part of Syncfusion Essential Studio Enterprise) facilitates the creation of 1D barcodes in PDF documents, including code39, codabar, and more.

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

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ビューアで直接PDFページを削除

9月 2, 2025
組み込みのページ削除により、ユーザーはPDFビューアで重複コンテンツや機密コンテンツを直接削除できるため、ドキュメントをより迅速かつクリーンに編集可能

Page deletion in a PDF Viewer allows users to remove unwanted, duplicate, or sensitive pages directly within the application without needing a separate editor. This feature simplifies document management by reducing file size and ensuring the final PDF is clean, concise, and professional. It is particularly useful for correcting errors, such as removing mistakenly added or blank pages, as well as for enhancing security by deleting confidential content before sharing externally. By offering fast, built-in editing, page deletion improves productivity and makes tailoring documents to specific audiences more efficient.

Several ASP.NET Core PDF viewer controls offer the ability to add pages to a PDF file including:

  • Telerik UI PDF for ASP.NET Core (part of Telerik UI for ASP.NET Core) lets you refine documents with page deletion, ensuring professional and audience-ready PDFs instantly.
  • Document Solutions for PDF by MESCIUS allows you to manage content with page removal, protecting confidentiality and creating concise, secure files effortlessly.
  • Syncfusion ASP.NET Core PDF (part of Telerik UI for ASP.NET Core) facilitates document customization with built-in page deletion.

For an in-depth analysis of features and price, visit our ASP.NET Core PDF viewer controls comparison.

Compare ASP.NET Core PDF Viewer Controls