Shrink PDFs without quality loss.

use pdfluent::{Sdk, compress::{CompressOptions, ImageQuality}};

fn main() -> pdfluent::Result<()> {
    let sdk = Sdk::new()?;
    let doc = sdk.open("presentation.pdf")?;

    let original_size = doc.file_size();

    let opts = CompressOptions::builder()
        .image_quality(ImageQuality::Jpeg(75))
        .image_dpi_target(150)
        .deduplicate_streams(true)
        .compress_object_streams(true)
        .subset_fonts(true)
        .linearize(true)
        .build();

    let compressed = doc.compress(opts)?;
    compressed.save("presentation_compressed.pdf")?;

    let new_size = compressed.file_size();
    let reduction = 100 - (new_size * 100 / original_size);
    println!("Reduced by {}% ({} -> {} bytes)", reduction, original_size, new_size);

    Ok(())
}