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HTML Formatter Guide — Beautify Markup for Review

Indent HTML templates and CMS fragments for readable diffs before HTML-to-PDF export.

Published June 1, 2025 · 1 min read

Written by Ethan Brooks · Editor-in-Chief & Product Lead

Reviewed by James Cole

Last reviewed January 15, 2026 · Editorial policy

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Beautify HTML markup

Minified templates, copied CMS fragments, and email HTML are hard to review. The HTML formatter indents tags and attributes for readable diffs before you commit or hand off to a designer.

Works well with

Static email templates before HTML to PDF export
Legacy landing pages migrated to a new CMS
Pairing with text comparer for regression checks

Sources & references

Primary references used when researching and fact-checking this guide. See our editorial methodology.

Adobe PDF Reference — encryption — Adobe
PDF password protection and encryption standards (ISO 32000).
Ghostscript documentation — PDF settings — Artifex Software
Compression level behavior and PDF output settings.