Documents that stay valid for 50 years.

use pdfluent::{PdfDocument, PdfAProfile, CompressOptions};

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

    // Check PDF/A conformance for long-term archiving
    let report = doc.validate_pdfa(PdfAProfile::A2b)?;
    println!("PDF/A-2b compliant: {}", report.is_compliant());
    for v in &report.violations {
        println!("[{}] {}", v.rule, v.message);
    }

    // Subset fonts and compress for a smaller archival file
    doc.subset_fonts()?;
    doc.compress(CompressOptions::archival())?;
    doc.save("report-archival.pdf")?;
    Ok(())
}