PDF parsing and rendering in pure Rust.

pdfboss-core alone parses; the others build on it. Optional features stay off by default in the library crates: substitute-fonts on pdfboss-render bundles replacement faces for PDFs that do not embed theirs, predefined-cmaps on pdfboss-core compiles in the CJK CMap set, and http on pdfboss-aio enables remote documents over HTTP range requests.

$ cargo add pdfboss-core pdfboss-output pdfboss-render
# optional: pdfboss-text pdfboss-write pdfboss-markdown pdfboss-aio
$ cargo add pdfboss-aio --features http

render_page returns an RGBA Pixmap; save_png and encode_png turn it into a file or bytes. render_page_reporting returns the same pixels plus every dropped or approximated item. Page indexes are 0-based.

use pdfboss_core::Document;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let doc = Document::open("report.pdf")?;
    println!("{} pages", doc.page_count());

    let page = doc.page(0)?;
    let text = pdfboss_output::extract_text(&doc, &page)?;
    println!("{text}");

    let pixmap = pdfboss_render::render_page(&doc, &page, 2.0)?;
    pixmap.save_png("page.png")?;
    Ok(())
}

No borrowed decoders and no C. Each crate’s API reference lives on docs.rs; the Rust reference chapter says where to start for reading, extracting, rasterizing, creating, composing Markdown, async sources and element iteration.