Open source tools Clark relies on every day.

These projects started as internal tools for Clark and became solid enough to release. All Rust, all production-grade, all aimed at practical workflows. If a dependency hurt us, we rewrote it.

3 crates · All Rust · MIT-ish

Three crates in production.

1. 01

   pdfsink-rs — a pdfplumber replacement

   Pure-Rust PDF text, word, and table extraction. 10–50× faster than the Python equivalents. Drop-in for anywhere you were shelling out to pdfplumber or pypdf. Rust · MIT. Repo: github.com/clark-labs-inc/pdfsink-rs · crates.io/crates/pdfsink-rs.

2. 02

   pdfer_forms — AcroForms without Python

   Pure-Rust AcroForm inspection and filling. pypdf / PyPDF2 replacement. Inspects field trees, fills values, preserves appearance streams. Rust · MIT / Apache-2.0. Repo: github.com/clark-labs-inc/pdfer-forms-rs · crates.io/crates/pdfer_forms.

3. 03

   libreoffice-pure — an office suite as a library

   Pure-Rust office suite. Powers docx/xlsx/pptx conversion, formula recalculation, and rasterization without installing LibreOffice. Small enough to embed. Rust · MIT. Repo: github.com/clark-labs-inc/libreoffice-rs.