EPUBLabRemoving running headers from a 585-page report
Updated:
Long reports repeat the chapter title and page number on every page, and a line-by-line conversion puts them in the middle of sentences. On the 585-page 9/11 Commission Report the EPUBLab engine detects them by comparing pages and removes them.
Original and result
Running headers and page numbers on every page, chapters and endnotes, 585 pages.
Download source PDF Download the sample EPUB
Source and licence
- Document
- The 9/11 Commission Report (GPO)
- Licence
- Public domain (work of the U.S. Government)
- Pages
- 585
- Traits
- text PDF, book, chapters, repeated headers, endnotes, long, load test
Settings used
- Engine: epublab-core, build of 2026-11-03 (the one measured in the benchmark).
- Pages: the whole document.
- Options: none. The engine has no per-document settings yet; the same defaults apply to every file.
Validation and results
EPUBCheck EPUBCheck on our EPUB: 0 errors, 0 warnings.
| Engine | Margin leak |
|---|---|
| EPUBLab engine (EPUB output) | 0.000 |
| EPUBLab engine (plain text) | 0.995 |
| pdf_oxide · extract_text | 0.995 |
| pdf_oxide · to_plain_text (XY-cut) | 0.995 |
| pdf_oxide · Markdown | 0.005 |
| PDFium · text().all() | 1.000 |
| OpenDataLoader PDF (local mode) | 0.000 |
| pdftotext (Poppler) | 0.000 |
Limitations we observed
- There is no independent reference text for this document, so only margin leak, time and memory are measured.
- The margin-leak metric is only reliable for engines that split lines like pdftotext -layout.