Best PDF APIs for Microsoft 365

Find and compare the best PDF APIs for Microsoft 365 in 2026

Use the comparison tool below to compare the top PDF APIs for Microsoft 365 on the market. You can filter results by user reviews, pricing, features, platform, region, support options, integrations, and more.

  • 1
    Nutrient SDK Reviews
    Top Pick
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    Nutrient provides an extensive solution for all your PDF requirements, delivering tools that seamlessly operate PDF features across any platform. 1. SDK: Incorporate advanced PDF functionality into iOS, Android, Windows, web, or any cross-platform technology, supplying abilities like PDF viewing, annotation, collaboration, and beyond. 2. Libraries: Employ our powerful .NET and Java libraries to enhance your backend applications with batch processing of redactions and PDF forms, OCR'd scanned text, and PDF document editing, all directly from your application server. 3. Processor: Our agile PDF microservice, Processor, enables rapid generation of PDFs from HTML, including HTML forms, as well as Office-to-PDF conversions, OCR, redaction, and XFDF combining and exporting. 4. PDF API: Take advantage of our hosted PDF API to generate, convert, and alter PDF documents in your workflows. We handle the development and server management, freeing you up to concentrate on your business. At Nutrient, we're not just a tool; we're a committed ally in your success. Gain direct contact with our engineers for expert guidance, utilize comprehensive examples to simplify integration, and make the most of our top-tier documentation.
  • 2
    Adobe Acrobat Reviews
    Top Pick
    Adobe Acrobat is an all-in-one PDF productivity and e-signature platform and one of the leading enterprise document platforms that scales for global teams — designed to simplify document creation, editing, collaboration, and protection. Users can edit text and images directly within PDFs, reorganize pages, and compare file versions to quickly identify changes. The software enables fast conversion between PDFs and common file formats such as Microsoft Word, Excel, PowerPoint, and image files. Integrated e-signature capabilities allow businesses to collect legally binding signatures and track responses securely. With Acrobat Studio, Adobe Acrobat expands beyond core PDF and e‑signature tasks into an AI‑powered workspace for document insight, content creation, and collaboration.Acrobat AI Assistant adds intelligent document support by summarizing content, generating insights, and answering contextual questions with cited references. PDF Spaces creates a collaborative workspace where teams can centralize files, comments, and AI-driven guidance. Built-in protection tools safeguard documents with encryption, permissions, and redaction features. Mobile apps such as Acrobat Reader and Adobe Scan ensure access and editing capabilities from anywhere. Designed for individuals, students, and enterprises, Adobe Acrobat helps reduce document processing time and improve overall productivity.
  • 3
    PDF Conversion SDK Reviews

    PDF Conversion SDK

    Visual Integrity Technologies

    $199 per year
    Add PDF Features with 2 API calls Open, Edit, View PDF. Two API calls and a configuration file are all you need. In less than a day, your app can import, view, edit, and open PDF features. The SDK can be used to neutralize differences between formats. This includes cropping, fills, color management, and fonts. The PDF Conversion SDK can convert all PDF versions, including ISO Standard PDF 2.0. Any PDF file or print-ready memory can be used as input. Conversions are seamless without any intermediate steps or compromises in quality. No printer driver. The PDF Conversion SDK works on Windows, MacOS, and Linux. It supports.NET. Included is an example code. Removes redundant information & compresses data. This provides great performance for web and application browsing.
  • 4
    Aquaforest SDK Reviews
    The Aquaforest SDK is a robust set of tools designed for comprehensive PDF processing, offering features such as content extraction, the creation of searchable PDFs, and OCR capabilities powered by both its native engine and extended options from Canon IRIS, along with handwriting recognition via Google and Microsoft APIs. With an advanced PDF and barcode toolkit, it boasts high performance levels, capable of utilizing up to 64 cores for efficient processing. This SDK can effectively analyze PDF documents to automatically extract name/value pairs, facilitating a range of PDF manipulations including merging, attachment processing, content extraction, XMP metadata handling, and PDF/A validation, among others. The standard OCR engine included supports 23 languages and is available in all versions of the SDK, ensuring versatility for various applications. Furthermore, it provides seamless access to Google and Microsoft’s cloud OCR services, which is particularly advantageous for specific tasks such as recognizing handwritten text. Additionally, the SDK has the ability to read and interpret most common barcode formats, enhancing its utility in diverse document processing scenarios.
  • 5
    Adobe PDF Services API Reviews
    Generate a PDF from Microsoft Office files, safeguard the information, and seamlessly convert it into various formats. You can programmatically manipulate documents by reordering, inserting, and rotating pages, along with compressing the file sizes. Utilize the same cloud-based APIs that power Adobe's user-focused applications to efficiently provide scalable and secure solutions. Extracting text, images, tables, and other content from both native and scanned PDFs can be done, resulting in a well-structured JSON file. The PDF Extract API utilizes advanced AI technology to precisely recognize text elements and comprehend the natural flow of reading different components, such as headings, lists, and paragraphs that may extend across multiple columns or pages. Additionally, you can capture font styles and metadata, identifying characteristics like bold and italic text along with their respective positions in the PDF. The resulting information is formatted in a structured JSON file, with tables available in CSV or XLSX formats and images stored as PNG files. This comprehensive approach ensures that users can efficiently manage and manipulate their PDF documents while preserving essential data integrity.
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