Software Alternatives, Accelerators & Startups
Register | Login

PDFluent SDK VS Apryse

Compare PDFluent SDK VS Apryse and see what are their differences

KeptPDF
Redact, edit, OCR, and sign PDFs entirely in your browser. The file never leaves your device. Free, no account needed. sponsored
Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

PDFluent SDK logo PDFluent SDK

Pure Rust PDF SDK โ€“ zero C deps, 2.5MB brotli WASM, tested on 50k PDFs.

Apryse logo Apryse

Integrate document processing capabilities into any software applications. Generate, convert, view, edit, and sign pdf and documents easily.
  • PDFluent SDK Landing page
    Landing page //
    2026-08-28

PDFluent is a PDF SDK built on a pure Rust core (48 crates, zero C or C++ dependencies). This means no native library to link and a single dependency to vendor. The Rust core is reached from Python, .NET, Java and Node.js through native bindings, and is compiled to WebAssembly for the browser (2.5 MB brotli-compressed over the wire).

You can integrate PDFluent from Rust, Python, .NET, Java, and Node.js, with packages published on crates.io, PyPI, NuGet, Maven Central, and npm. The SDK covers the full spectrum of PDF operations:

  • Rendering, text and image extraction
  • AcroForm forms and PAdES digital signatures
  • PDF/A conversion and validation, redaction, OCR
  • Document manipulation: merge, split, watermark, compress
  • XFA form rendering and flattening (experimental)

PDFluent has been tested on 50,000 real PDFs with zero crashes. In a rendering fidelity benchmark of 5,000 PDFs, 94% achieved SSIM 0.95 or better against the reference renderer mutool.

Run the SDK with no licence key at all and you get every feature plus a Producer watermark on output. Take the 30-day evaluation, no credit card required, and the watermark is gone for those 30 days. Buy a perpetual licence (paid once from EUR 699 โ€“ no subscription) and it stays gone.

A companion desktop editor for macOS and Windows is free for everyone, including commercial use. It runs entirely on the device, requires no account, and sends no telemetry. The company behind PDFluent is Innovation Trigger B.V., based in the Netherlands.

  • Apryse Landing page
    Landing page //
    2023-10-04

PDFluent SDK

Website
pdfluent.com
Pricing URL
Official PDFluent SDK Pricing
$ Details
freemium โ‚ฌ699 / One-off (Start free for 30 days โ€” full SDK, no watermarks)
Platforms
Linux MacOS Windows Web Browser Online
Startup details
Country
Netherlands
Employees
1 - 9
Edit details

Apryse

Website
apryse.com
Pricing URL
Official Apryse Pricing
$ Details
-
Platforms
-
Edit details

PDFluent SDK features and specs

  • Engine
    Pure Rust core, 48 crates, no C or C++ dependencies
  • Language surfaces
    Rust, Python, .NET, Java, Node.js, WebAssembly
  • Distribution
    crates.io, PyPI, npm, NuGet, Maven Central
  • WebAssembly build
    2.5MB brotli-compressed, runs in the browser
  • Licence
    Perpetual, paid once from EUR 699, no subscription
  • Evaluation
    30 days, no credit card required
  • Unlicensed output marking
    Adds Producer watermark to output, all features enabled
  • Stability test
    Zero crashes on 50,000 real PDFs
  • Rendering quality
    94% of 5,000 PDFs at SSIM 0.95+ vs mutool
  • Document operations
    Rendering, text and image extraction, forms, redaction, OCR, merge, split, watermark, compress
  • Standards & compliance
    PAdES digital signatures, PDF/A conversion and validation
  • XFA support
    Renders and flattens legacy XFA forms, experimental
  • Desktop editor
    Free for macOS and Windows, commercial use, runs entirely on device

Apryse features and specs

  • Comprehensive PDF Solutions
    Apryse offers a wide range of tools and features for PDF manipulation, including creation, editing, and conversion, catering to a variety of business needs.
  • Cross-Platform Support
    The platform supports multiple operating systems, making it accessible for users on different devices, including Windows, macOS, Linux, iOS, and Android.
  • Developer-Friendly
    Apryse provides extensive documentation, sample code, and APIs, which make it easier for developers to integrate PDF functionalities into their applications.
  • High-Performance
    Apryse is known for its fast processing speed, allowing for efficient handling of large and complex PDF documents.
  • Security Features
    The platform includes robust security measures such as encryption, digital signatures, and permissions management, ensuring the protection of sensitive documents.

Possible disadvantages of Apryse

  • Complexity
    For users who require basic PDF functionalities, Apryse may appear overly complex with its wide array of advanced features.
  • Cost
    The pricing for Apryse's solutions can be high, especially for small businesses or individual users who might not need all the advanced features offered.
  • Steep Learning Curve
    Due to the comprehensive nature of its features, new users might face a steep learning curve while trying to familiarize themselves with the platform.
  • Limited Offline Support
    Some functionalities require an internet connection, which might be a limitation for users needing offline support.

PDFluent SDK videos

No PDFluent SDK videos yet. You could help us improve this page by suggesting one.

Add video

Apryse videos

+ Add

Revolutionize Your Workflow & Cut Costs with the Apryse WebViewer

Category Popularity

0-100% (relative to PDFluent SDK and Apryse)

PDFluent SDK

Apryse

HTML To PDF
100 100%
HTML To PDF
0% 0
PDF Tools
22 22%
PDF Tools
78% 78
PDF Conversion API
27 27%
PDF Conversion API
73% 73
Document Automation
0 0%
Document Automation
100% 100

Questions & Answers

As answered by people managing PDFluent SDK and Apryse.

How would you describe the primary audience of your product?

PDFluent SDK's answer

This fits developers who need to process real-world PDFs that include XFA forms - often from government or banking sources - and want a single SDK that works consistently across Python, Node.js, Java, C, Rust, and WebAssembly without managing native binaries for each platform.

What makes your product unique?

PDFluent SDK's answer

PDFluent SDK parses XFA, a 1,000-page specification that almost every modern PDF library ignores. It evaluates FormCalc scripts and flattens XFA forms to standard PDF, validated against an internal corpus of 1,150 enterprise documents including US, Canadian, IRS, GSA, and VA government forms plus banking documents. XFA support is experimental and has no published fidelity claim.

Why should a person choose your product over its competitors?

PDFluent SDK's answer

Because the SDK is pure Rust with no C or C++ dependencies, there is no FFI boundary inside the engine, no C++ exceptions to catch, and no platform binary to ship per OS. This eliminates the deployment complexity of dragging in a full PDFium build.

What's the story behind your product?

PDFluent SDK's answer

The team got tired of PDF libraries that crashed on real-world documents, ignored XFA entirely, or shipped 80 MB of C++ just to read a form field. They started building a parser in Rust from scratch, then added an XFA engine, a renderer, and a PDF/A converter. The company is Innovation Trigger B.V., based in the Netherlands.

Which are the primary technologies used for building your product?

PDFluent SDK's answer

PDFluent is built in pure Rust with no C or C++ dependencies. It provides bindings via PyO3 for Python, napi-rs for Node.js, JNI for Java, a cdylib header for C, native Rust, and WebAssembly (2.5 MB brotli-compressed). The same engine runs across all surfaces.

User comments

Share your experience with using PDFluent SDK and Apryse. For example, how are they different and which one is better?
Log in or Post with

Reviews

These are some of the external sources and on-site user reviews we've used to compare PDFluent SDK and Apryse

PDFluent SDK Reviews

We have no reviews of PDFluent SDK yet.
Be the first one to post

Apryse Reviews

14 Best PDF APIs for Every Business Need
Apryse SDK is capable of template generation, PDF manipulation, editing, e-signing, custom annotation, and workflow. Using this service, you can generate files from PDF templates and convert other formats into PDFs. It also comes with a rich set of APIs that enables you to customize extensive functionality.
Source: geekflare.com
PDF Reports: The Ultimate Guide
Apryse is a commercial PDF library that boasts a robust set of features and good performance, yet often can come with a hefty price tag. Further, you may run into a higher price point if you need more advanced features, such as additional integrations or custom branding.
Source: unidoc.io

What are some alternatives?

When comparing PDFluent SDK and Apryse, you can also consider the following products

Adobe - Creativity doesnโ€™t just open doors.

PSPDFKit - PSPDFKit is the best framework for working with PDF files. Our SDK provides first-rate PDF solutions for your application with features like annotating, signing, and form filling. We power successful projects for businesses across the globe.

IronPDF - SDK for creating and editing PDFs.

Foxit PDF SDK - Foxit is the leading PDF SDK distributor for Desktop, Mobile & Web applications. We provide the best UX on all major platforms, including iOS, Android and Windows, with our PDF libraries

Docmosis - Document generation software

ComPDF - Offer a top-quality PDF SDK, PDF API, and PDF AI solution for companies and developers. It enables you to integrate PDF document generation, viewing, annotation, editor, conversion, form filling, signing, parsing, and more into your applications.

Loading...