Articles

How to Test an HTML to PDF API Before You Commit

A repeatable trial checklist for HTML to PDF services: the torture test document to build, the output checks to run, and the pricing maths to do before you commit.

8 min read

Tutorials PHP

How to generate event tickets with QR codes from HTML

Design the ticket in HTML and CSS, drop in a signed QR code, render it to a PNG and email it. A full Laravel walkthrough, including door-scan verification.

4 min read

Tutorials JavaScript

How to generate dynamic Open Graph images in Nuxt

Two honest routes to per-page OG images in Nuxt: the nuxt-og-image module with Satori, or rendering your real HTML through an API. Working code for both.

4 min read

Tutorials PHP

Why HTML emails break in Outlook (and when to send images instead)

Classic Outlook renders email with Word's engine, which is why your layout collapses. Here is what survives, what never will, and when to ship an image instead.

4 min read

Tutorials JavaScript

How to render charts as images on the server

Chart.js and friends assume a browser. Here are three ways to turn a chart into a PNG on the server, with working code and the trade-offs of each.

5 min read

Tutorials PHP

How to archive a web page as a PDF for an audit trail

Build a page archive in Laravel. A queued job renders any URL to a PDF with a real text layer, stores it with a checksum and skips the capture when nothing has changed.

6 min read

Tutorials PHP

How to generate verifiable PDF certificates in Laravel

Design a completion certificate in Blade, render it as a vector PDF, add a QR verification link and email it to the learner automatically.

5 min read

Sysadmin Tooling

How to run headless Chrome in production without it falling over

Puppeteer works on your laptop, then falls over on the server. The Docker image, launch flags, font fixes and recycling strategy that keep headless Chrome alive in production, and an honest look at when self-hosting stops being worth it.

5 min read

Sysadmin Cyber Security

The practical guide to SPF, DKIM and DMARC

SPF, DKIM and DMARC decide whether your email reaches the inbox and whether anyone can spoof your domain. What each record actually checks, how to publish all three and how to reach p=reject without losing legitimate mail.

16 min read

Tutorials JavaScript Tooling

How to generate code screenshots programmatically with an API

Turn source code into clean, syntax-highlighted images for changelogs, release posts and docs. Highlight it, frame it, render it with an API, and automate the whole thing in CI.

5 min read

Tutorials WordPress PHP

How to auto-generate featured images for WordPress posts that don't have one

Stop broken thumbnails in your archive. Generate a branded featured image from the post title automatically whenever a WordPress post is published without one.

5 min read

Tutorials JavaScript

How the JavaScript event loop works

The event loop decides what runs and when in JavaScript. Learn the call stack, tasks and microtasks, and the three-step rule that makes any snippet's output predictable.

6 min read

Tutorials PHP

How to auto-generate a LinkedIn share card when a learner passes your certification

When a learner passes your certification, hand them a personalised, share-ready image and a one-click LinkedIn button. Here's how to generate that card in Laravel and trigger it automatically on every pass.

6 min read

Tutorials JavaScript

How to turn any URL into a screenshot from Node.js

Capture any web page as a PNG from Node with a single fetch. Full-page captures, single-element grabs by selector, saving to disk and batching, no Puppeteer.

4 min read

Tutorials JavaScript

Add "Export as image" to any dashboard

Add a reliable export-as-image button to a dashboard by rendering the panel server-side in a real browser, instead of rasterising the DOM in the browser.

4 min read