J-F-Liu/lopdf

Health v2 · maintenance only

Adoption not part of the score

2236 stars · 289 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

lopdf is a Rust library for low-level PDF document manipulation, supporting creating, parsing, editing, and merging PDF files. It offers optional features for image and font embedding, async loading, serde support, and wasm targets.

Use cases

• merge multiple pdf files in rust
• parse and edit pdf documents programmatically
• create pdf documents from scratch in rust
• extract or modify pdf objects and content streams
• embed images and fonts into a pdf
• manipulate pdfs in a webassembly app

When to choose

• you need low-level, fine-grained control over PDF objects and structure in Rust
• you want a pure-Rust, actively maintained PDF manipulation library
• you need to merge, edit, or generate PDFs without shelling out to external tools

When to avoid

• you need high-level text extraction or PDF rendering rather than structural manipulation
• you need form-filling or digital-signature features out of the box
• you are not working in Rust

Facets

library · maturity stable

pdf parser serialization pdf files developer-tools rust cross-platform wasm pdf-manipulation document-editing pdf-merge rust-library

Member repositories

For agents

markdown · JSON · MCP: product_card(name="J-F-Liu/lopdf")