Best PDF APIs with a Free Trial of 2025

Compare the Top PDF APIs with a Free Trial as of October 2025

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What are PDF APIs with a Free Trial?

PDF APIs are software interfaces that enable developers to integrate PDF-related functionality into their applications or websites. These APIs allow for the creation, manipulation, conversion, and extraction of content from PDF files without requiring users to manually open or edit the files. Common features of PDF APIs include merging, splitting, editing text, adding annotations, and extracting text and images. They can also handle PDF conversions, such as converting PDFs to other formats like Word, Excel, or HTML, and vice versa. By using PDF APIs, businesses can automate document workflows, enhance document management systems, and integrate PDF capabilities into custom applications seamlessly. Compare and read user reviews of the best PDF APIs with a Free Trial currently available using the table below. This list is updated regularly.

1

PrizmDoc

Accusoft

Through a collection of UI components and content manipulation APIs, PrizmDoc provides customizable document processing to help developers deliver in-browser document creation, editing, and collaboration functionality, to enhance their software applications. Our functionality integrates on the client and server side smoothly, creating a seamless experience for both you and your users. Render and display dozens of file types, from Adobe PDFs and Microsoft Office files to CAD and DICOM formats, in a browser without the need to download or open native applications. Designed for seamless integration with your application, our zero footprint HTML5 viewer is fully customizable, from quick integrations with minimal configuration to complete programmatic control using our extensive JavaScript API.

9 Ratings

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2

Document APIs

GrapeCity

Fast, efficient Document APIs for .NET Standard 2.0 and Java Take total document control with ultra-fast, low-footprint document APIs for enterprise apps. Generate, load, edit, save spreadsheets, PDF, images, and DOCX files. Create large spreadsheets, Word, images, and PDF documents, fast. No dependencies on Excel, Word, or Acrobat Run on Windows, Mac, Linux Deploy to Azure, AWS, and AWS Lambda What’s New in GrapeCity Documents v5: - Full support for .NET 6 - SVG support for GrapeCity Documents for PDF and Imaging - Print PDF documents on Windows with GrapeCity Documents for PDF - UI enhancements for GrapeCity Documents for PDF Viewer - And much more!

Starting Price: $999 per developer

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3

Aquaforest SDK

Aquaforest

Aquaforest SDK is a powerful toolset for processing PDFs including PDF content extraction, searchable PDF creation, OCR with standard (Aquaforest) engine, OCR with extended (Canon IRIS) engine, and handwriting OCR options via Google and Microsoft APIs. Advanced PDF and barcode toolkit, high performance with support for up to 64 cores. The SDK is able to analyze PDF documents and automatically extract name/value pairs. The SDK has a wide variety of PDF manipulation capabilities including PDF merging, PDF attachment processing, PDF content extraction, XMP metadata processing, PDF/A validation, and more. The standard OCR engine supports 23 languages and is included in every edition of the SDK. This provides an interface to Google and Microsoft’s cloud OCR services which can be especially useful for special cases such as handwriting recognition. The SDK is able to read and recognize most standard barcode types.

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