Best of · AI Agents / DevOps / Libraries
Best document, PDF and typesetting tools (2026)
Stack Gems reviews 4 document, PDF and typesetting tools: 4 free or open source. These are the top 4, each with its verdict and the Catch we would want to know before installing it.
Order: free and open source first, then hosted products with a real free tier, then paid-led; catalog order inside each group, with quiet or archived repos last. Not a score, and no tool pays for its place.
4 reviewed · 4 shown in full
Free / OSS · Apache-2.0 · 56.7k GitHub stars
VerdictApache-2.0 typesetter. Free CLI forever; use when docs should compile fast and the cloud editor is optional.
Catchtypst.app collaborative cloud is a separate product with its own free/paid seats — the compiler CLI here is the OSS gem. Vs Pandoc/Quarto and vs LaTeX: smaller package ecosystem and different mental model; migration is a rewrite, not a flag. Not a slide tool.
Free / OSS · GPL-3.0 · 46.9k GitHub stars
VerdictGPL-3 self-hosted DMS. Use for OCR + searchable archives; not an agent memory substitute.
CatchVs Notion/Drive dumps: this is a document archive appliance, not a knowledge wiki or agent memory layer. GPL-3 copyleft for modifications; OCR/ML quality depends on language packs and scanner hygiene; public docs/demo endpoints may be WAF-gated from some networks — use the GitHub tree and Compose files as source of truth.
- 3.PPT MasterMIT agent skill that turns documents into natively editable PowerPoint decks — real shapes, charts and slide masters
Free / OSS · OSS/MIT · 63.6k GitHub stars
VerdictThe best free way to get an agent to produce PowerPoint people can actually edit — bring a strong model and skip the relay sponsors.
CatchThe author says it outright: the model sets the ceiling and you will not get a finished deck in one shot — the recommendation is a long-context frontier model plus a paid image model, and cheaper models leave more cleanup. Long decks burn a lot of tokens on your own key. The README leads with sponsor blocks for third-party API relay resellers selling Claude/GPT/Gemini access "at a fraction of official rates"; use official provider keys. No SmartArt, by design. Vs hyperframes (HTML to video): this is for decks people will edit in PowerPoint.
Free / OSS · OSS/MIT · 13.3k GitHub stars
VerdictThe default way to add HTML or Office-to-PDF to any backend — keep it on your private network.
CatchIt converts to PDF, not from it: it won't turn a PDF back into Word or text. It is a service you run next to your app, not a library you import, so you deploy, scale and secure the container yourself, and the bundled Chromium and LibreOffice make it a heavy image. Keep it off the public internet: its URL route fetches whatever address it is sent.
FAQ
- What is the top free pick among document, PDF and typesetting tools?
- Typst leads the Stack Gems list for document, PDF and typesetting tools. Verdict: Apache-2.0 typesetter. Free CLI forever; use when docs should compile fast and the cloud editor is optional.
- How many document, PDF and typesetting tools does Stack Gems review?
- 4: 4 free or open source. Each review has a verdict and an honest Catch; no tool pays for its spot.
- Which document, PDF and typesetting tools can I self-host for free?
- Typst, Paperless-ngx, PPT Master and Gotenberg.
- Which document, PDF and typesetting tools have the most GitHub stars?
- PPT Master (63.6k), Typst (56.7k), Paperless-ngx (46.9k), per GitHub on 2026-10-19. Stars measure attention, not fit; read the Catch.
- What is the catch with Typst?
- typst.app collaborative cloud is a separate product with its own free/paid seats — the compiler CLI here is the OSS gem.
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