Study and research

Clean copied PDF and OCR text

Repair broken words, join hard line breaks, and remove repeated headers, footers and page numbers.

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Upload a PDF or paste fragmented OCR text

Paste OCR text directly, or upload a PDF for local extraction.

Choose PDF

Before

Raw fragmented text

After

Clean readable paragraphs

The internet has changed academic research. Hard line breaks make copied text difficult to read.

This second page demonstrates automatic paragraph joining and noise removal.

hyphenated words repaired

hard line breaks joined

headers, footers and page numbers removed

Extraction, OCR and cleanup all run locally in your browser.

PDF files and text never leave your device.

User guide

How to use PDF Text Cleaner

Repair copied or OCR text by joining broken lines, removing repeated page furniture, and fixing hyphenation.

1
Paste raw text or import extracted PDF text.
2
Choose the content language and cleanup options.
3
Compare the original and cleaned versions.
4
Copy or download the cleaned text.

Best for

Academic papers
OCR output and copied reports

Important limitation

Automatic cleanup can remove meaningful line breaks in poetry, source code, addresses, or tables; review those formats carefully.

Frequently asked questions

How are broken English words repaired?

A line-ending hyphen followed by a lowercase continuation is joined.

Can it remove headers?

Repeated short lines can be detected as headers or footers across pages.

PDFPerch processes files locally unless this guide explicitly identifies a cloud-dependent feature. Always keep an original copy and verify critical output before submission, printing, signing, or accounting use.