PDFluent vs pdf-rs

use pdfluent::Document;

fn main() -> pdfluent::Result<()> {
    let mut doc = Document::open("application.pdf")?;

    // Read
    let text = doc.page(0)?.extract_text()?;
    println!("{}", text);

    // Write form fields
    let mut form = doc.acroform()?;
    form.set_field("applicant_name", "Jane Smith")?;
    form.set_field("date", "2024-04-14")?;

    // Sign
    let key = pdfluent::SigningKey::from_p12("cert.p12", "password")?;
    doc.sign(&key, pdfluent::SignatureOptions::default())?;

    // Validate PDF/A-2b before saving
    let report = doc.validate_pdfa(pdfluent::PdfaLevel::A2b)?;
    if !report.is_valid() {
        eprintln!("Validation issues: {:?}", report.errors());
    }

    doc.save("application_signed.pdf")?;
    Ok(())
}

use pdf::file::FileOptions;
use pdf::object::*;

fn main() {
    // pdf-rs opens PDFs for reading only
    let file = FileOptions::cached().open("application.pdf").unwrap();

    // Traverse pages and extract text
    for page in file.pages() {
        let page = page.unwrap();
        // Content stream traversal - no high-level text API
        if let Some(content) = page.contents.as_ref() {
            println!("{:?}", content);
        }
    }

    // pdf-rs CANNOT write PDF files
    // pdf-rs CANNOT fill form fields
    // pdf-rs CANNOT add digital signatures
    // pdf-rs CANNOT validate or produce PDF/A
    // pdf-rs CANNOT flatten XFA forms
}