LibPDF-js/core

Health v2 · maintenance only

Adoption not part of the score

1803 stars · 63 forks observed · 2026-08-28

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

LibPDF is a modern TypeScript PDF library for parsing, modifying, generating, and signing PDF documents. It combines lenient parsing (like PDF.js), an intuitive API (like pdf-lib), and features such as encryption, PAdES digital signatures, form filling, and incremental saves.

Use cases

• parse pdfs in typescript
• generate pdf documents from scratch
• sign pdfs with digital certificates
• fill and flatten pdf form fields
• merge or split pdf files
• extract text with positions from pdfs
• decrypt and encrypt password-protected pdfs
• append changes to signed pdfs without invalidating signatures

When to choose

• you need both parsing and generation in one TypeScript library
• you must handle malformed or encrypted PDFs other libraries reject
• you need PAdES digital signatures or incremental saves that preserve signatures
• you want form filling, flattening, attachments, or font embedding

When to avoid

• you only need to render PDFs in a browser (use PDF.js)
• you need stable, frozen APIs - the library is beta and APIs may change
• you need PDF 2.0 write support, which is not yet implemented

Facets

library · maturity active

pdf parser serialization cryptography pdf files developer-tools web-development bun browser cross-platform pdf-generation digital-signatures pades form-filling encryption text-extraction incremental-saves typescript-native nodejs typescript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="LibPDF-js/core")