Welcome to Code by Zeba Academy.
A technical reference library for document engineering, digital publishing standards, and automated print pipelines.
Here you’ll find production-ready schemas, validator error solutions, and implementation specs for JATS XML, EPUB 3, ONIX 3.0, Pandoc workflows, and prepress standards; built for production editors, prepress operators, and publishing technologists.
Latest Articles
Thoughts, tutorials, and insights.
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· 5 min read
How to Prevent Page-Break Collapses in Paged Media?
Read more →: How to Prevent Page-Break Collapses in Paged Media?Automated typesetting pipelines built on CSS Paged Media engines (PrinceXML, WeasyPrint, Paged.js) exhibit severe document fragmentation when processing technical documents containing complex tabular structures, multi-line…
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· 5 min read
How to Automate EPUB 3 Navigation Documents from Content Headings?
Read more →: How to Automate EPUB 3 Navigation Documents from Content Headings?EPUB specifications (W3C Recommendation 25 May 2023) mandate the inclusion of an EPUB Navigation Document conforming to the application/xhtml+xml media type and declared in the…
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· 5 min read
How to Validate JATS Contrib Affiliations and Persistent IDs?
Read more →: How to Validate JATS Contrib Affiliations and Persistent IDs?In automated XML-first journal publishing pipelines, ingestion gateways frequently fail downstream validation during Crossref deposit or PubMed Central (PMC) ingestion due to malformed metadata within…
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· 5 min read
Structuring Chapter Metadata in BITS 2.1 Monographs
Read more →: Structuring Chapter Metadata in BITS 2.1 MonographsEdited collections and scholarly monographs present a hierarchical metadata challenge that flat journal serialization schemas cannot resolve. Standard journal publishing relies on ANSI/NISO Z39.96 (JATS),…
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· 5 min read
How SVG ViewBox and FXL Sizing: Fixing HTM_048 Warnings?
Read more →: How SVG ViewBox and FXL Sizing: Fixing HTM_048 Warnings?Fixed-layout (FXL) EPUB 3.3 publishing pipelines frequently encounter automated ingestion failure HTM_048: “SVG Fixed-Layout Documents must have a ‘viewBox’ attribute (on the outermost ‘svg’ element)”.…
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· 5 min read
How to Automate 3mm Bleed and Crop Marks with CSS @page?
Read more →: How to Automate 3mm Bleed and Crop Marks with CSS @page?Commercial sheetfed offset and print-on-demand (POD) finishing lines rely on mechanical guillotines operating at speeds exceeding 40 cuts per minute. Due to clamp compression, mechanical…