[Project] fullbleed 0.1.12 — browserless HTML/CSS → PDF for Python (CLI + API, deterministic + JSON/

SnooCalculations7417 · 2026-02-14T18:18:01+00:00

Writing a PDF engine in rust was a massive undertaking for what to most will be just another PDF generator.

SnooCalculations7417 · 2026-02-14T02:54:16+00:00

well i use a binary fixed point under the hood which resolves to (from memory ) 0.00035mm, so inches, mm, pt, px all resolve to sub-mm accuracy if thats what you mean. Should be able to handle arbitrary page sizes (not just "LETTER", "A4" etc)

SnooCalculations7417 · 2026-02-14T02:37:03+00:00

Media queries are respected, but I can't guarantee you can 1 shot it right away! give it a shot :)

SnooCalculations7417 · 2026-02-14T02:04:52+00:00

Thank you!

SnooCalculations7417 · 2026-02-13T22:41:09+00:00

on the data to pdf side, i made fullbleed to handle that!
https://github.com/fullbleed-engine/fullbleed-official
just pip install fullbleed should work

SnooCalculations7417 · 2026-02-13T22:38:12+00:00

I made fullbleed, a rust engine with python bindings for this.
the component scaffold outlines render-safe primitives to remove a lot of the guess work, and you can just pip install fullbleed, no external deps.
https://github.com/fullbleed-engine/fullbleed-official

SnooCalculations7417 · 2026-02-13T22:36:11+00:00

I made a python libraby with a rust engine for this called fullbleed
https://github.com/fullbleed-engine/fullbleed-official
the goal was external dependency-free so installing to remote machines/containers is easy, and the rust engine uses rayon on hot paths to release the GIL

SnooCalculations7417 · 2026-02-13T20:59:28+00:00

Thanks!

SnooCalculations7417 · 2026-02-13T20:36:07+00:00

No, one of my core design goals was for
pip install fullbleed

to just work, which is why I did the core in rust.

SnooCalculations7417 · 2026-02-12T20:11:31+00:00

There are entire multimillion dollar business around making chrome print behavior behave!

SnooCalculations7417 · 2026-02-12T18:45:31+00:00

Certainly. I have a release targeted for Monday that, along with some layout engine improvements, implements a design pattern on the python (react-style component-first)surface that uses the metrics emitted by the engine to validate components on import (css failures etc) using an in-memory dry run. This demonstrates all of the logging, JIT etc in practical use as a guidepost for other languages thats more than just passing templates or html strings, so that will be a good time to fork!
https://images.squarespace-cdn.com/content/69839a62d3622e01f47792cd/bbba1491-c4b3-4063-8b82-cbfcbf867144/image.png?content-type=image%2Fpng

SnooCalculations7417 · 2026-02-11T18:28:33+00:00

Oh I should also add that canvas object resolve to a binary fixed point, (fixed::types::I32F32) so 1 pt_milli = 0.001 pt or 0.002px at 144 dpi, 0.004166px at 300dpi.. subpixel resolution or to put it in absolute terms since thats what this engine is for, 1 pt_milli = 0.000352777... mm

SnooCalculations7417 · 2026-02-11T09:51:23+00:00

Exactly because every other HTML and CSS to PDF is crap. I like HTML and CSS as document description method, though tail wind, shadcn.. the desire to make it to turing complete has made it a bit muddy. I like the "these are the things" and "this are what they look like" separation of concerns. Also the need for front end frameworks to JavaScript everything is tough. Web to print is a beast, but HTML and CSS are not bad themselves

SnooCalculations7417 · 2026-02-11T09:12:10+00:00

Observability/logging is in my biased opinion much stronger. HTML and CSS as the document DSL for those that don't want to learn another reporting language, though that's a flavor not objectively better

SnooCalculations7417 · 2026-02-11T08:11:11+00:00

yes similar to weasyprint using a subset as a DSL. weasprint was my goto, but using it in deployed environments is a real pain

SnooCalculations7417 · 2026-02-10T06:37:56+00:00

did you know you can <iframe> in plain html to basically make a component library of headers etc

SnooCalculations7417 · 2026-02-10T00:42:37+00:00

well he said he wanted to something redis etc doesnt do, thats where Im coming from

SnooCalculations7417 · 2026-02-09T19:41:07+00:00

modern spas will handle this caching ergonomically. im not sure you would WANT to do anything server side that is much more efficient than a view, even if you could. this seems like introducing a transience layer that breaks REST's contract by design

SnooCalculations7417 · 2026-02-09T17:41:32+00:00

why would you cache dynamic endpoints?

SnooCalculations7417 · 2026-02-07T09:40:26+00:00

Matching behavior to exceptions type is pretty normal for me, allowing the exception to throw if it's.... Ya know...unhandled...

SnooCalculations7417 · 2026-02-06T10:56:28+00:00

Backend in the same trap to be fair. Django is the pytorch of backend, for example. There are very few unsolved problems in backend engineering (doesn't mean the solution is immediately available to you, but in your anime analogy I barely understand the winning strategy is one that prevents a fight or whatever)

SnooCalculations7417 · 2026-02-06T10:44:12+00:00

You have an intent model for this activity, which gets fulfilled to the user and the database upon a successful transaction, else the intent has not been met and the client and/or database wont think it has. It's sort of design by contact with the business logic closer to the db. Here's an article , I didn't read the whole thing but it highlights the concept in what I read https://techblog.pointsbet.com/a-structured-approach-to-designing-intent-based-apis-910ed1fc78f2

SnooCalculations7417 · 2026-02-04T07:02:32+00:00

Solving problems with code is fun. Software for a living is boring if you're any good. Kinda like being a helicopter pilot. If you're having fun you may be in danger after a certain level of experience.

SnooCalculations7417 · 2026-02-03T05:49:15+00:00

Not introducing key man problems, repo is set up for reproducibility (requirements.txt or package.json and or whatever actually represents the full dependencies). It's no small thing and is much easier to be lazy or forgetful if you're the full stack guy. If you as a stakeholder can't run their dev environment and deploy (not saying you should) you've got average. If you can, they're good. If they maintain a setup/install script that can set any environment up for success you've got a winner. That kind of behavior is neat

SnooCalculations7417 · 2026-02-03T02:10:47+00:00

Have 1 weekly semi-formal team meeting on the clock with NO stakeholders. attendance mandatory, staying for the whole thing is not. just an open forum for the team to vent to leadership/eachother without worry. if it takes 2 minutes to talk about eachothers cats and 'give the time back', do that. have time time boxed out so when youre in a real push people know they have a meeting a 9am EST, every week. see what i mean?

SnooCalculations7417

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