OCRツール OCRスキャンソフトウェア(更新リスト:開発者向け) Kannapat Udonpant 更新日:7月 28, 2025 Download IronOCR NuGet Download テキストの検索と置換 テキストと画像のスタンプ Start Free Trial Copy for LLMs Copy for LLMs Copy page as Markdown for LLMs Open in ChatGPT Ask ChatGPT about this page Open in Gemini Ask Gemini about this page Open in Grok Ask Grok about this page Open in Perplexity Ask Perplexity about this page Share Share on Facebook Share on X (Twitter) Share on LinkedIn Copy URL Email article Optical Character Recognition (OCR) OCR, or Optical Character Recognition, is a technology that has transformed the way we process and analyze documents. By converting scanned images of text into machine-readable characters, OCR software enables businesses and individuals to automate data extraction, facilitate document organization, and boost productivity. There are multiple free OCR software in the market. In this article, we'll explore the top OCR software options available today, showcasing their unique features and capabilities. Adobe Acrobat Pro DC: The Industry Standard for PDFs Adobe Acrobat Pro DC is more than just a PDF reader. It's a feature-rich OCR software that has become an industry standard for businesses worldwide. Advanced OCR Capabilities Adobe Acrobat Pro DC's OCR capabilities are excellent. With its powerful engine, the software can recognize and extract text in multiple languages, as well as text within images, scanned documents, and paper documents. This makes it a reliable choice for users who need accurate OCR results. Cloud-Based Convenience It offers cloud-based storage and collaboration features, allowing users to access their documents from any device and work on them with their team. This added convenience makes it an excellent choice for businesses and professionals who need to manage many documents. Pricing Adobe Acrobat Pro DC uses a subscription-based pricing model. For individual users, the monthly subscription cost is approximately $19.99 per month when billed annually, or $29.99 per month when billed monthly. For businesses, the cost is around $23.99 per month per user when billed monthly. Adobe also offers discounted pricing for students, teachers, and educational institutions. ABBYY FineReader: The All-in-One OCR Solution When it comes to OCR software, ABBYY FineReader stands out as a leader in the field. This powerful software suite offers a comprehensive set of tools to meet the diverse needs of users, from professionals to casual users. Accuracy The backbone of any OCR software is its accuracy in recognizing characters, and ABBYY FineReader is no exception. With its advanced algorithms and powerful AI, this software has consistently outperformed its competitors in both accuracy and speed. Users can expect near-perfect recognition of even complex documents, including those with multiple languages and varying text layouts. Wide Range of Supported Formats One of the standout features of ABBYY FineReader is its ability to work with a vast array of file formats. This versatility allows users to effortlessly convert documents, whether they're in PDF, Word, or Excel, into editable files. User Friendly Interface and Powerful Editing Tools ABBYY FineReader's user-friendly interface makes it simple for anyone to start using the software, regardless of their technical expertise. Additionally, the suite offers a robust set of editing tools, enabling users to make adjustments to recognized text, correct formatting, and even add annotations. Pricing ABBYY FineReader software offers 3 products which are FineReader PDF Standard, FineReader PDF Corporate for Windows, and FineReader PDF for Mac operating systems. All products come with monthly and yearly plans. FineReader PDF Standards costs $99/year. You can use the FineReader Corporate PDF for Windows only for $165/year. And if you are a Mac user, then you can buy a yearly license of the FineReader Mac edition for $69. Iris OCR Software for Businesses and Individuals Readiris is a versatile and user-friendly OCR software designed to cater to the needs of both businesses and individual users. With its comprehensive feature set and powerful recognition capabilities, Readiris has established itself as a popular choice for those seeking an efficient and reliable OCR solution. Exceptional OCR Accuracy and Speed Readiris boasts an advanced OCR engine that delivers exceptional accuracy and speed when recognizing text in various document formats, such as PDF files, Word, and Excel. The software can recognize text in multiple languages, making it a valuable tool for users who work with diverse documents. Batch Processing and Automation For users who need to process large volumes of documents, Readiris offers robust batch processing and automation features. The software can recognize text and convert documents in bulk, significantly reducing the time and effort required for manual processing. Pricing Readiris provides different pricing options to cater to individual users and businesses. The advanced Readiris 17 Corporate edition, which offers features like batch processing and document organization, starts from $199. Readiris Pro 17 for Windows costs around $99. IronOCR: The Developer-Friendly OCR Solution for .NET IronOCR is a powerful OCR software specifically designed for .NET developers. With its robust set of features and easy-to-use API, IronOCR has become a popular choice among programmers who need to incorporate OCR capabilities into their applications to extract data and many more. Effortless Integration with .NET Applications One of the most significant advantages of IronOCR is its seamless integration with .NET applications. Developers can quickly and easily add OCR functionality to their projects by using the IronOCR API, which is compatible with C#, VB.NET, and other .NET languages. Advanced OCR Engine IronOCR boasts an advanced OCR engine that delivers high recognition accuracy and supports various document formats, including PDF, TIFF, JPEG, and BMP. The software can also recognize text in multiple languages, making it a versatile choice for developers working with diverse document types. using IronOcr; var Ocr = new IronTesseract(); using (var input = new OcrInput()) { // Add an image file to the OCR input input.AddImage("attachment.png"); // Add a PDF file to the OCR input input.AddPdf("report.PDF"); // Perform OCR and get the result OcrResult result = Ocr.Read(input); // Extract the text from the OCR result string text = result.Text; } using IronOcr; var Ocr = new IronTesseract(); using (var input = new OcrInput()) { // Add an image file to the OCR input input.AddImage("attachment.png"); // Add a PDF file to the OCR input input.AddPdf("report.PDF"); // Perform OCR and get the result OcrResult result = Ocr.Read(input); // Extract the text from the OCR result string text = result.Text; } Imports IronOcr Private Ocr = New IronTesseract() Using input = New OcrInput() ' Add an image file to the OCR input input.AddImage("attachment.png") ' Add a PDF file to the OCR input input.AddPdf("report.PDF") ' Perform OCR and get the result Dim result As OcrResult = Ocr.Read(input) ' Extract the text from the OCR result Dim text As String = result.Text End Using $vbLabelText $csharpLabel Preprocessing and Post-processing Features IronOCR offers a range of preprocessing and post-processing features that enable developers to fine-tune the OCR process. These features include image file resizing, noise reduction, and rotation correction, which can help improve recognition accuracy and make the output more useful. Comprehensive Documentation and Support A standout feature of IronOCR is its extensive documentation and support resources, which make it easy for developers to get started and troubleshoot any issues they may encounter. From sample code to detailed API documentation, IronOCR provides the resources developers need to make the most of the software. Pricing IronOCR offers various pricing options tailored to different needs. Individual developers can get a single developer license for approximately $799, while smaller teams can opt for a 10 developer license at around $1499. For larger organizations, an unlimited developer license costs about $4,799. IronOCR also provides a free trial, allowing developers to test the software before making a purchase. Conclusion: Choosing the Right OCR Software In this article, we have explored four powerful OCR software solutions: ABBYY FineReader, Adobe Acrobat Pro DC, IronOCR, and Readiris. Each of these software options caters to different user requirements and preferences, offering unique features and capabilities. For .NET developers seeking a developer-friendly and customizable OCR solution, IronOCR is an ideal choice. Finally, Readiris is a versatile and user-friendly option that provides powerful PDF management, document organization, and storage features. Ultimately, selecting the best OCR software will depend on your unique needs and priorities. Consider factors such as budget, user-friendliness, integration, and customization when making your decision. Kannapat Udonpant 今すぐエンジニアリングチームとチャット ソフトウェアエンジニア ソフトウェアエンジニアになる前に、Kannapatは北海道大学で環境資源の博士号を修了しました。博士号を追求する間に、彼はバイオプロダクションエンジニアリング学科の一部である車両ロボティクスラボラトリーのメンバーになりました。2022年には、C#のスキルを活用してIron Softwareのエンジニアリングチームに参加し、IronPDFに注力しています。Kannapatは、IronPDFの多くのコードを執筆している開発者から直接学んでいるため、この仕事を大切にしています。同僚から学びながら、Iron Softwareでの働く社会的側面も楽しんでいます。コードやドキュメントを書いていない時は、KannapatはPS5でゲームをしたり、『The Last of Us』を再視聴したりしていることが多いです。 関連する記事 更新日 6月 22, 2025 Power Automate OCR(開発者向けチュートリアル) この光学文字認識技術は、ドキュメントのデジタル化、自動化されたPDFデータの抽出とエントリ、請求書処理、スキャンPDFの検索可能化に応用されます。 詳しく読む 更新日 6月 22, 2025 Easyocr対Tesseract (OCR機能の比較) EasyOCR、Tesseract OCR、Keras-OCR、IronOCRのような人気のOCRツールやライブラリは、現代のアプリケーションにこの機能を統合するためによく利用されています。 詳しく読む 更新日 6月 22, 2025 画像をテキストに変換する方法 現代のデジタル時代では、画像ベースのコンテンツを読みやすい編集可能で検索可能なテキストに変換することが重要です。 詳しく読む 最高のOCR API(更新リストの比較)Microsoft OCRソフトウェア(...
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