PDF Text Extractor
Extract plain text from any PDF, page by page.
Overview
The PDF text extractor pulls plain text out of any PDF, page by page. The output preserves reading order and line breaks but drops all layout, fonts, and images — perfect for feeding into a search index, a translation tool, an LLM prompt, or a desktop find-in-files workflow.
Researchers building text corpora from journal articles, paralegals running keyword searches across exhibits, and engineers wiring up PDF-aware retrieval pipelines reach for this when only the words matter. Long-tail searches that lead here include "extract text from PDF online", "PDF to plain text converter", and "get content from PDF for search indexing".
How it works
A PDF page's content stream contains text-showing operators (Tj, TJ, ', ") that emit glyph runs at specific coordinates using a chosen font. The extractor parses the content stream, follows each font's encoding to map glyph codes back to Unicode characters, and stitches the runs into reading order using their positions on the page.
Where the PDF embeds a ToUnicode CMap (most modern PDFs do), the character mapping is direct. Where it is absent, fallback heuristics try standard encodings. Line breaks are inferred from vertical gaps, paragraph breaks from larger gaps, and column boundaries from horizontal spacing — yielding output that reads naturally for typical single- and two-column documents.
Examples
- Extract the full text of a research paper for a corpus-analysis pipeline.
- Pull the body of a scanned contract that already has an OCR text layer.
- Index a folder of policy documents into a search engine.
- Feed an LLM with the prose from a multi-page report.
FAQ
Does it OCR image-only PDFs?
No. The extractor reads the text layer that is already in the PDF. Scanned pages without OCR produce no text — run OCR first.
Why is the reading order sometimes scrambled?
Multi-column layouts, tables, and PDFs generated by tools that emit text glyph-by-glyph can confuse positional reconstruction. The output is usually correct but occasionally needs manual reordering for unusual layouts.
Are tables preserved?
Cell content is extracted in approximate row order but without true grid structure. For analytical workflows, use a dedicated table-extractor.
What about ligatures and special characters?
With a ToUnicode map, ligatures (fi, fl) decode to their constituent characters. Without one, ligatures may appear as their glyph code, which looks like a placeholder character.
Does it work on encrypted PDFs?
The PDF must be unlocked first. The extractor cannot read content streams it cannot decrypt.