PDF to Word Converter
Convert PDF to Word online free. Get an editable Microsoft Word document (.docx) with real paragraphs, tables, and images preserved, not text boxes. No signup, no watermark.
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
About PDF files
PDF is a fixed layout format. It shows a page the same way on every screen and printer, but it is hard to edit. Contracts, forms, reports and scanned letters often arrive as PDF.
People convert PDF to Word when they need to change the text, reuse a table or fill in a document that was sent only as a PDF. The result is a DOCX file that opens in Microsoft Word, Google Docs and most other word processors.
How we convert PDF to Word
- Method
- We rebuild the layout. Paragraphs, tables and images become editable Word content, not a picture of each page.
- Scanned pages
- If a PDF has on average fewer than 50 text characters per page, we treat it as a scan and run text recognition at 300 DPI before the conversion, for up to 50 pages.
- Output
- A DOCX file.
- Measured
- A 10-page PDF of 80 KB became a 40 KB DOCX in about 5 seconds of processing.
Common problems and fixes
The Word file shows the pages but I cannot select the text.
The PDF is probably a scan with more than 50 pages. Text recognition runs on the first 50 scanned pages only. Split the PDF into parts of 50 pages or fewer and convert each part.
Some lines break in odd places or the fonts look different.
A PDF stores positions, not paragraphs, so the rebuilt layout can differ a little. Select the text in Word and apply one style to clean it up quickly.
The PDF asks for a password.
Remove the password first with our Unlock PDF tool, then convert the unlocked file.
PDF から DOCX への設定
- エンジン
- 設定
- 調整できる設定: 3
- Page Size
- Password
- ページ
- 必要なページだけを変換できます(例: 1-5, 8)。
PDFからDOCXへの変換について
Converting PDF to Word is the most common document conversion in the world, used millions of times daily by people who need to edit content locked in PDF format. The output is a .docx file: Word Open XML (ISO/IEC 29500), a ZIP-compressed package of XML files that Microsoft Word, Google Docs, and virtually every modern word processor can open and edit. ("Word format" and "DOCX" are the same thing: .docx has been Word's native file extension since Word 2007.)
The conversion reverse-engineers the PDF's visual layout to produce an editable Word document. This involves extracting text with its formatting attributes, reconstructing paragraph and heading structure, identifying and preserving tables, extracting embedded images, and mapping the PDF's absolute-positioned layout to Word's flow-based document model. The quality of this reconstruction determines how much manual cleanup is needed after conversion.
Scanned PDFs are handled automatically. A scanned document contains no real text (each page is just a photograph of paper) so there is nothing for direct extraction to pull out as editable words. The converter checks for a usable text layer before it starts: when the pages average almost no extractable text, it runs OCR at 300 DPI on the file first and then converts the recognized text to Word, all in one job. Two honest limits: the automatic OCR pass covers scans up to 50 pages, longer scans convert directly and the result carries a notice pointing you to our dedicated PDF OCR tool, and if the OCR pass itself fails for any reason, the conversion still completes from the original file (with a notice) rather than failing the job. A contract that exists only as a scan in your inbox can come out the other side as a Word document you can actually revise.
PDFをDOCXに変換する理由
The most common scenario is receiving a PDF that needs content updates: a contract with incorrect terms, a report with outdated statistics, a proposal that needs customization for a new client, or a resume that needs editing. Without the original Word file, converting the PDF to DOCX is the only practical option.
DOCX is also the standard format for collaborative document editing. Google Docs, Microsoft 365, and OneDrive all use DOCX as their interchange format for real-time co-editing. Converting a PDF to DOCX enables sharing the document through these collaboration platforms where multiple people can edit simultaneously with tracked changes and comments.
主な活用例
- Edit PDF contracts, proposals, and agreements when the original Word file is unavailable
- Update statistics, dates, and figures in PDF reports and whitepapers
- Customize PDF templates for different clients, projects, or regions
- Enable collaborative editing of PDF documents in Google Docs or Microsoft 365
- Extract formatted content from PDFs for reuse in new Word documents
- Convert PDF forms into editable Word templates for repeated use across an organization
仕組み
The conversion runs on a semantic layout-extraction engine. It reads the PDF content stream, extracting text with positioning and style information, then assembles text blocks into real paragraphs using line-spacing analysis and indentation detection, not the absolute-positioned text boxes that simpler converters produce (we keep a simpler import only as a fallback). Tables are detected by analyzing both ruling lines (lattice tables) and aligned text blocks (stream tables). Images are extracted at high resolution and anchored near their original positions. The assembled document is saved as DOCX, which internally stores content in XML files (document.xml, styles.xml) with image assets in a media subfolder, all compressed in a ZIP container.
The practical difference matters when you start editing: real paragraphs reflow naturally as you type, real tables let you add rows, and styles map to Word's built-in style system. Converters that emit one text box per line technically "preserve layout" but produce documents that fall apart the moment you edit them.
品質とパフォーマンス
Simple single-column documents with standard fonts convert closely: text, formatting, and images come through as they were. Multi-column layouts, complex tables with merged cells, headers/footers, and documents with heavy graphic design require more manual cleanup. The key quality factors are: (1) whether the PDF was digitally created (better) or scanned (worse), (2) the complexity of the layout, and (3) whether standard fonts were used. Adobe-created PDFs with tagged structure produce the best results.
デバイス互換性
| Device | DOCX | |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | Native | No |
最良の結果を得るためのヒント
- 1Digitally-created PDFs convert far more accurately than scanned documents, so use the best source you have
- 2Review tables, headers, and page breaks after conversion: these are the parts that most often need a touch-up
- 3For best results with scanned PDFs, ensure the original scans are at least 300 DPI
- 4DOCX is the better choice over DOC for all modern Word versions and produces smaller files
- 5Save the converted DOCX immediately, then make edits from the saved file rather than re-converting
関連する変換
PDF to Word conversion is the essential tool for unlocking editable content from PDF files. Start with the highest-quality source PDF available, use DOCX for modern Word compatibility, and expect some manual formatting adjustments for complex layouts. The time saved compared to retyping content manually is enormous.
PDFとDOCXの比較
| 特徴 | DOCX | |
|---|---|---|
| 正式名称 | Portable Document Format | Microsoft Word Document |
| 拡張子 | .docx |