ncert-app scope — merge per-chapter NCERT PDFs into one-per-book, all classes, EN + HI

decision Sun Jun 21 2026 00:00:00 GMT+0000 (Coordinated Universal Time) decisionappncertpdfeducationindiagh-releases

ncert-app scope

What it does

Catalogs every NCERT-published textbook, automates the "I just want the whole book as one PDF" workflow.

NCERT publishes per-chapter PDFs on ncert.nic.in. Students perpetually want one-PDF-per-book. This app produces and hosts that artefact.

Pipeline

1. GH Action (daily 04:00 IST) walks the NCERT URL tree.
2. Downloads every chapter PDF per {class, subject, language} triple.
3. Merges via qpdf --empty --pages a.pdf b.pdf c.pdf -- merged.pdf (or pdftk fallback).
4. Names output {class}-{subject}-{en|hi}.pdf — e.g. class-9-science-en.pdf, class-11-physics-hi.pdf.
5. Publishes as GitHub Release artefacts under tag ncert-YYYY-MM-DD. NOT CF Pages — CF Pages has a 25 MB per-file limit; merged textbooks routinely exceed.

Scope

• Classes: Pre-Primary + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 (every class NCERT publishes).
• Languages: English + Hindi (every NCERT-published language pair).
• Subjects: every NCERT-published subject per class (Math, Science, Social Science, English, Hindi, Sanskrit, Urdu, Physics, Chemistry, Biology, Accountancy, Business Studies, Economics, History, Geography, Political Science, Sociology, Psychology, Philosophy, etc.).

Catalog UI at ncert.oriz.in

• Class/subject grid (rows: classes, columns: subjects).
• Each cell links to the GH Release download URL for that {class, subject, lang} PDF.
• Language toggle (EN/HI) at top.
• Search box across class+subject.
• "Last updated" timestamp per row from the GH Release.

Why GH Releases not CF Pages

CF Pages = 25 MB per asset. Merged Class 11 Physics in Hindi alone = ~80 MB. GH Releases = 2 GB per asset, unlimited download bandwidth, free for public repos. Compliant with [[rules/cloudflare-pages-only]] for the CATALOG (which IS on CF Pages); the storage for large binaries follows the existing rule in [[decisions/database/object-storage-split]].

Monetisation

Free + sponsor footer per family default. No ads on an education resource serving students.

Cross-refs

• GH Releases for large binaries ? [[decisions/database/object-storage-split]]
• Q3 priority ? [[decisions/apps/ship-order-2026q3]]