PDFluent SDK

Pure Rust PDF/A SDK with XFA support and WASM bindings.

use pdfluent::Document;

let doc = Document::from_path("input.pdf")?;
for page in doc.pages() {
    println!("{}", page.text()?);
}
let pdfa = doc.convert_to_pdf_a()?;
pdfa.save("output.pdf")?;

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Features

XFA Forms

• Full XFA 3.3 support — dynamic forms with scriptable calculations
• Font embedding pipeline — automatic resolution of embedded, system, and fallback fonts
• Image embedding — JPEG/PNG XObjects with alpha transparency via SMask
• Layout engine — positioned, flowed (tb/lr-tb), and table layouts with pagination
• FormCalc interpreter — 90+ built-in functions for form calculations
• SOM path resolution — xfa.form.subform[3].field[*] expressions

PDF Rendering

• Pure Rust rasterizer — vello_cpu for memory-safe rendering
• Multi-format output — PNG, JPEG, PDF (rasterized)
• SSIM quality metrics — visual comparison against Adobe Reader ground truth

PDF/A Compliance

• PDF/A-1a, A-2a, A-3a — ZUGFeRD/Factur-X invoice support
• Font embedding — automatic embedding with subsetting
• Color space normalization — OutputIntent injection
• Metadata repair — XMP writer integration

Document Manipulation

• Page operations — merge, split, insert, delete, rearrange
• Encryption — AES-256 PDF 2.0 encryption/decryption
• Content editing — find-and-replace text in content streams
• Watermarks — text and image overlay

WASM & Bindings

• WebAssembly — runs in browser via xfa-wasm
• Node.js — napi-rs bindings
• Python — PyO3 bindings (separate crate)
• C FFI — pdf-capi for C/C++ integration