Architecture

How to Control Page Breaks in HTML to PDF Output

You render an invoice that looks right in the browser, open the PDF and find line item 14 cut in half by a page boundary. The description sits at the …

A Practical Three-State Validation Model for User-Generated PDFs

Most form validation libraries answer one question: is this field valid? Document-generation products need to answer a harder question: is this file s…

WeasyPrint Alternative: HTML to PDF in Python (When You Need JavaScript)

You build a report template in HTML. It looks right in the browser: the layout holds, the webfont loads, the Chart.js graph draws. Then you run it thr…

PDF Tamper Detection API for Java: Spring Boot Integration Guide

Originally published at htpbe.tech . The version on htpbe.tech stays in sync with the latest detection algorithm — refer to it for the canonical text.…

A Black Box Drawn Over a PDF Isn't Redaction — Here's How I Fixed It Client-Side

I wanted a complete PDF editor running entirely in the browser — page reordering, annotations, highlights, a drawn signature, watermark — on the same …

HTML to PDF in C#: The Complete Guide

This is a complete, hands-on guide to converting HTML to PDF in C# with the SelectPdf library for .NET . It works up from a three-line conversion to a…

How to Make a PDF Look Scanned in the Browser

Making a PDF look scanned is a surprisingly practical document-processing problem. Users often want a digital PDF to resemble a printed, signed, and r…

How I Merge PDFs in the Browser with Vue 3 and pdf-lib

Merging PDFs on the server is straightforward. Upload the files, run a command-line tool, send the result back. But that means your users’ documents t…

The Limits of Generalized Sync: ATaxonomy of Architectures, Trade‑offs, and Decision Factors

How I Split PDFs in the Browser with Vue 3 and pdf-lib

Splitting a PDF is one of those features that sounds trivial until you try to build it. Users expect range input ( 1-3, 5, 7-9 ), a per-page option, m…

Stop Parsing PDFs at Render Time: A Better Architecture for Structured Extraction

TLDR: The reason most frontend PDF extraction is wrong is that developers try to infer document structure from the rendered visual output instead of f…

The case for deterministic PDF filling

AI can read almost any document now. The harder question is what writes the answer back — and for anything an auditor might ever look at, that write s…

Document Automation in 2026: A Honest Comparison of the AI-Native Platforms

TL;DR: Document automation has matured. Carbone, Docxpresso, and the open-source template engines dominate the developer tier. Templafy and Conga cove…

Why Building a PDF Engine in Go Will Help You Understand Go Concepts Better

There is a class of projects that teaches you more about a language than any tutorial ever could. Building a PDF engine from scratch in Go is one of t…

The Critical State of Cyberspacs

NATO is currently in a ‘grey zone’: increasingly being challenged in cyberspace while unable to attribute attacks, thus failing to deter. Simultaneous…

Build a PDF to Image Converter in Next.js

This tutorial walks through the PDF to Images feature in a Next.js template. You'll learn how to use it from the UI, and how it works under the hood u…

Tabula vs Camelot vs pdfplumber in 2026: Which Python Library Actually Wins?

When you need to extract tables from PDFs in Python, three libraries dominate every Stack Overflow answer and tutorial from the past few years: Tabula…

How to Generate PDF Invoices? A Complete Guide from Zero to Service-Oriented Implementation

Generating a PDF invoice may seem as simple as "exporting a file," but in real business scenarios, it connects order systems, finance systems, tax rul…

GraphCompose: как я приволок ECS из геймдева и снапшот-тесты из фронта в PDF-генерацию на Java

TL;DR Я сделал библиотеку для генерации PDF на Java, в которой: Документ описывается  семантически  (модули, секции, параграфы, таблицы, сло…