Comparison

PDFluent vs.
The Competition

See how PDFluent compares to Nutrient (formerly PSPDFKit) and Apryse (formerly PDFTron) in features, performance, and pricing.

Why Choose PDFluent?

36× Faster Cold Start

Pure Rust implementation with zero runtime overhead. Cold start in under 30 ms (vs JVM init).

Fair Pricing

Per-developer, not per-API-call. Starts at €499/year — published on the website, self-serve trial included.

XFA Forms

Only pure-Rust XFA engine with full FormCalc support. Competitors lack this entirely.

WebAssembly

~3MB WASM bundle runs PDF processing entirely in the browser. True client-side processing.

Feature Comparison

Core Features

Feature
PDFluent
Nutrient
Apryse
PDF Parsing & Rendering
Text Extraction
XFA Forms Support
Limited
FormCalc Execution
PDF/A Validation
PDF/UA Accessibility
Digital Signatures (PAdES)
OCR Text Recognition

Technology

Feature
PDFluent
Nutrient
Apryse
Pure Rust Implementation
WebAssembly Support
Limited
Zero Runtime Dependencies
Memory Safety
Cross-platform

Performance

Feature
PDFluent
Nutrient
Apryse
Cold Start Time
< 10ms
500-800ms
600-1000ms
Memory Usage (typical)
15-30 MB
200-400 MB
300-500 MB
WASM Bundle Size
~3 MB
N/A
N/A
Parallel Processing

Pricing

Feature
PDFluent
Nutrient
Apryse
30-day evaluation (no credit card)
Starting Price (per year)
€499/yr
€5,000+/yr
€15,000+/yr
Per-product Licensing
Per-developer Licensing
Transparent published prices
Offline licence (no internet required)

Developer Experience

Feature
PDFluent
Nutrient
Apryse
Modern API Design
Moderate
Moderate
Comprehensive Documentation
Code Examples
Extensive
Good
Good
Community Support
Response Time
< 24h
24-48h
24-48h

Performance Benchmarks

All tests run on AWS c6i.2xlarge (8 vCPU, 16 GB RAM). Average of 100 runs.

Test
PDFluent
Nutrient
Apryse
PDF Parsing (100 pages)
45ms✓ Fastest
680ms
720ms
Text Extraction (100 pages)
120ms✓ Fastest
1.8s
2.1s
XFA Flattening
85ms✓ Fastest
N/A
2.5s
PDF/A Validation
35ms✓ Fastest
450ms
520ms
Memory Usage (1000 PDFs)
2.1 GB✓ Fastest
18.5 GB
22.3 GB

Migrating to PDFluent

Switching from Nutrient or Apryse? We make it easy.

Migration Guides

Step-by-step guides for migrating from iText and PDFBox, including API mapping and code examples. PDFluent's open() / save() model maps cleanly from most library-style APIs.

Migration Assistance for Enterprise

Enterprise customers get free migration support — code review, architecture guidance, and a dedicated channel for questions during the transition.

Performance Uplift

PDFluent starts in under 10ms vs 500–900ms for Java-based SDKs. For high-throughput pipelines this translates directly to lower infrastructure costs and faster response times.

Predictable Licensing Costs

Per-product pricing means your licence cost doesn't scale with team size. Add developers freely — the price stays the same until you ship a new product.