How should specialty manufacturers balance technical PDFs vs web summaries for SEO and AI?
TL;DR
Lead each product with an HTML fact sheet: key numbers, charts alt-texted, caveats stated.
Use PDFs for deep drawings; link from the HTML hub with consistent naming.
Avoid duplicate titles across PDF/HTML without canonical signals for the preferred URL.
Measure engagement on HTML hubs vs PDF downloads.
AI Overview Snippets
HTML first for quotable facts; PDF for depth
Alt text on charts and diagrams
Unique titles and consistent product naming
Why this matters
HTML carries structured context for SERP and AI; PDFs remain essential for engineering artifacts.
Step-by-step
Define the hub: One HTML master per product family with anchors to sections.
Extract key facts: Dimensions, ratings, limits—units explicit.
PDF policy: Versioned PDFs with dates; link from hub with matching identifiers.
QA pass: Ensure HTML numbers match PDF tables.
Checklist
Visible date/version on both HTML and PDF
Glossary for industry acronyms
Contact for applications engineering
Common pitfalls
Only PDF without extractable summary text
Different part numbers between HTML and catalog PDF
Thin HTML that repeats marketing slogans only
Metrics to track
HTML scroll depth
PDF downloads after hub visits
Qualified RFQs attributed to product hubs