McGraw Hill and Pearson+ eTextbook Downloaders

Two browser scripts that save a textbook you already have access to as an EPUB or ZIP.

• McGraw Hill is script.js, v2026.08.31.2
• Pearson+ is pearson.js and three helpers, v2026.08.31.6

Files

• script.js - the McGraw Hill downloader
• loader.js - fetches the current script.js from this repo
• pearson.js - finds the Pearson book, crawls it, cleans it up and builds the EPUB
• pearson-fastzip.js - fixes the final EPUB metadata and writes the ZIP
• pearson-loader.js - console loader, loads the ZIP writer before pearson.js
• pearson-media.user.js - Tampermonkey script, and the way I'd run Pearson

McGraw Hill

Usage

1. Sign in and open the actual book in the Reader (Chrome Recommended)
2. Wait for a chapter to load
3. Open DevTools and go to the Console
4. Paste loader.js and run it
5. Leave every resource type selected for a complete EPUB, or pick a subset for a raw ZIP
6. Choose EPUB or ZIP and click Start download
7. Read the report before closing the window

If the page blocks the loader, open script.js on GitHub and paste it into the Console instead.

One-line loader

fetch('https://raw.githubusercontent.com/chaevsfe/mgh/main/script.js?t='+Date.now(),{cache:'no-store'}).then(r=>{if(!r.ok)throw new Error('HTTP '+r.status);return r.text()}).then(s=>(0,eval)(s)).catch(console.error)

Troubleshooting

Could not locate the open textbook. You are probably on the Connect assignment or course page rather than the Reader.

The loader is blocked. The page's Content Security Policy is stopping remote code. Paste script.js into the Console directly.

A resource says repaired. The URL in the manifest failed, but the same file came back after the doubled slashes were cleaned out of the path. The manifest entry inside the EPUB is left alone.

A resource says AccessDenied or invalid font. The server sent an error page instead of the file. It gets rejected rather than saved, and the report lists it as failed.

The download gets rate limited. It backs off on its own and lowers how many files it pulls at once. Leave it running.

Pearson+

Usage

Install pearson-media.user.js in Tampermonkey or Violentmonkey and open the book normally. It starts itself on /products/... pages, and there is a menu command called Launch Pearson Downloader if you need it by hand. (Chrome Recommended)

The userscript also loads JSZip up front so Pearson's Content Security Policy cannot block it. It may pull images from cite-media.pearson.com and media.pearsoncmg.com. No cookies or credentials are sent to those hosts.

If you would rather not install anything, paste pearson-loader.js into the Console. Images may be blocked by CORS stay as their original web links instead of being saved into the book.

TOC

Pearson usually asks for /api/contenttoc/v1/assets before a pasted script is running. If the downloader says it is waiting for the TOC:

1. Open DevTools and go to Network
2. Filter for contenttoc and reload the page
3. Click /api/contenttoc/v1/assets
4. Open Response and copy the whole JSON body
5. Use copied TOC JSON or Paste TOC JSON

What EPUB mode does

• Orders pages by Pearson's own playOrder
• Builds nav.xhtml from the real chapter and section tree
• Downloads the images, CSS, fonts and JSON the pages reference
• Only rewrites a link to a local file after that file downloaded
• Strips scripts, iframes, embeds, refresh tags and inline event handlers
• Strips control characters that would make the XHTML invalid
• Finds the cover and marks it properly
• Marks a page remote-resources only when it really embeds something remote, not just because it has a normal external link
• Confirms the finished file starts with an uncompressed mimetype entry

ZIP

pearson-fastzip.js keeps the original bytes handed to zip.file(...) and writes a plain stored ZIP itself, computing the CRCs and writing the headers and central directory directly. It leaves mimetype stored as EPUB requires, and reports progress per file. Classic ZIP limits only.

Output

EPUB:

mimetype
META-INF/container.xml
OEBPS/content.opf
OEBPS/nav.xhtml
OEBPS/source/...
OEBPS/external/...
OEBPS/pearson-download-report.json

Authorization

Only use these for books you are allowed to read. Do not use them to get around account permissions or DRM, and do not redistribute what they save.

Credit

The McGraw Hill downloader is based on work by jimmckeeth and 101arrowz, rewritten in 2026 for the current Reader. The Pearson+ downloader is my own.

License

MIT. See LICENSE.