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Remove Duplicate Lines from PDF Text

When you copy text from PDFs, duplicate lines often appear due to headers, footers, and formatting artifacts repeating across pages. Paste your PDF text below and instantly get a clean, deduplicated version.

How to do this

Copy text from your PDF

Paste it into the input box

Click Run Tool

Copy your deduplicated output

Paste text below and run the tool. Everything runs locally in your browser. No data is stored.

TextRefinery

Remove Duplicate Lines

Paste text with duplicate lines and instantly get a deduplicated version. Useful for cleaning lists, log files, CSV data, and any text where repetition needs to be eliminated.

Example

Input

apple
banana
apple
cherry
banana

Output

apple
banana
cherry

How Remove Duplicate Lines Works

Paste text with duplicate lines and instantly get a deduplicated version. Useful for cleaning lists, log files, CSV data, and any text where repetition needs to be eliminated.

This tool runs entirely in your browser — no data is sent to any server. Paste your text, click Run, and get your result instantly. You can also chain this tool with others using the pipeline feature: run Remove Duplicate Lines, then continue with a related tool to build a multi-step text workflow.

Related Tools

Remove Empty Lines

Strip all blank lines from your text.

Remove Duplicate Paragraphs

Remove repeated paragraphs, keeping the first occurrence.

Sort Lines Alphabetically

Sort all lines in alphabetical order.

TextRefinery is a free, open-source text processing toolkit. Learn more about regular expressions and text processing on the web.

Example: Remove Duplicate Lines from PDF Text

Input

Company Name
Page 1
Introduction
Company Name
Page 2
Methods
Company Name
Page 3
Results

Output

Company Name
Page 1
Introduction
Page 2
Methods
Page 3
Results

Related Use Cases

Remove Duplicate Lines from CSV Data

Eliminate duplicate rows from CSV exports and spreadsheet data.

Remove Duplicate Lines from Log Files

Clean up repeated entries in server logs, application logs, and error logs.

Remove Duplicate Lines from Email Lists

Deduplicate email lists for newsletters, outreach campaigns, and contact management.

Remove Duplicate Lines from Spreadsheet Data

Clean duplicate entries from Excel or Google Sheets data pasted as text.

Use Remove Duplicate Lines →