J-F-Liu/lopdf
A Rust library for PDF document manipulation. observed · 2026-10-20
Health v2 · maintenance only
98/100
- Activity 100
- Release rhythm 94
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 2
- age_days: 3598
- days_rel: 42
- days_push: 1
- n_releases_24m: 8
Adoption not part of the score
2281 stars · 303 forks observed · 2026-10-20
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
2 sources
- readme: https://github.com/J-F-Liu/lopdf · fetched 2026-10-20 · d2b479b03d39
- registry_crates: https://crates.io/api/v1/crates/lopdf · fetched 2026-08-29 · 6e332320d05b
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| J-F-Liu/lopdf | main | 98 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem