Extract Text from PDF: Free PDF to Text Converter
Extract text from PDF files. Convert PDF to plain text for editing, analysis & accessibility. Free online converter with OCR.
PDFに対応
アップロードすることで、これらのファイルの権利を有していること、および利用規約に同意することを確認したものとみなされます。
変換設定: ファイルを追加すると調整できます
安全な転送
HTTPS暗号化アップロード
プライバシー優先
ゲストのファイルは約2時間で自動削除
登録不要
すぐに変換を開始
どこでも動作
あらゆるブラウザ、あらゆるデバイス
PDF から TXT への設定
- エンジン
- 設定
- 調整できる設定: 2
- Password
- ページ
- 必要なページだけを変換できます(例: 1-5, 8)。
変換方法
アップロードエリアにドラッグするか、クリックして選択し、.pdfファイルをアップロードしてください。
必要に応じて出力設定を調整してください。デフォルト設定ではオリジナルの品質を維持します。
「変換」をクリックし、準備ができたら.txtファイルをダウンロードしてください。
PDFからTXTへの変換について
Extracting text from PDF creates plain text files for editing, searching, analysis, and accessibility. Our PDF to text converter handles both native PDFs (with selectable text) and scanned documents (using OCR), delivering clean text output from any PDF source.
Whether you need to edit PDF content, analyze document text, or make documents accessible to screen readers, text extraction is the essential first step. The conversion produces clean, properly formatted text ready for any text-based workflow.
PDFをTXTに変換する理由
Text manipulation requires plain text format. PDF content can't be easily edited, searched, or analyzed in its original form. Extracting to text enables find-and-replace, data extraction, content repurposing, and integration with text processing tools.
Accessibility improves with plain text. Screen readers handle plain text more reliably than PDF. For visually impaired users or text-to-speech applications, text extraction enables document access.
Data analysis often begins with text extraction. Natural language processing, content analysis, and data mining tools work with text files. Converting PDF reports, research papers, and documents to text enables programmatic analysis.
主な活用例
- Edit PDF content without specialized PDF editors
- Extract data from PDF reports for analysis
- Make scanned documents searchable and accessible
- Copy PDF content to word processors or web forms
- Enable screen reader access to PDF documents
- Process document text with analysis tools
仕組み
For native PDFs (containing actual text, not images), we extract text directly from the PDF structure, preserving character accuracy. Layout approximation attempts to maintain paragraph structure and reading order.
For scanned PDFs (image-based), we apply OCR (Optical Character Recognition) with our text recognition engine. OCR accuracy depends on scan quality—clear, high-resolution scans produce better results. Multiple language support is available.
品質とパフォーマンス
Native PDF text extraction is highly accurate. OCR accuracy for scanned documents varies based on image quality, font clarity, and language complexity. Handwritten text has lower accuracy than printed text.
デバイス互換性
| Device | TXT | |
|---|---|---|
| Windows | Native | Native |
| macOS | Native | Native |
| iOS | Native | Native |
| Android | Native | Native |
| Linux | Native | Native |
| ChromeOS | Native | Native |
PDF to TXT: real-world performance
| Speed | Near-instant |
| Output size | ~93% smaller (measured 75 KB → 5 KB). |
| Quality | Text layer extracted; images and layout dropped. |
| Engine | PDF engine, server-side. |
Measured on our servers, June 2026, on a 2-page PDF. See all measured conversions →
最良の結果を得るためのヒント
- 1Native PDFs (digitally created) extract text more accurately than scanned documents
- 2For scanned PDFs, OCR accuracy depends on scan quality — 300 DPI is ideal
- 3Complex tables may not convert cleanly to linear text — consider PDF to Excel instead
- 4Select the correct language for OCR to maximize accuracy on non-English documents
- 5Plain text loses all formatting — for structured output, use PDF to Word instead
関連する変換
Unlock your PDF content for editing and analysis. Our converter extracts text from any PDF—native or scanned—creating plain text files ready for any text-based workflow.
PDFとTXTの比較
| 特徴 | TXT | |
|---|---|---|
| 正式名称 | Portable Document Format | Plain Text |
| 拡張子 | .txt |
よくある質問
関連する変換とツール
このPDFを編集・署名・圧縮しますか?
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