PDF 拆分教學：從 PDF 抽出特定頁面
1. 導言
你有冇試過收到一份幾十頁嘅 PDF 文件，但其實你只係需要入面其中幾頁？例如一份合約只需要簽名頁、一份報告只需要某個章節、一份月結單只需要特定月份。傳統做法係逐頁列印再掃描，或者用付費軟件，好麻煩。我哋嘅免費線上 PDF 拆分工具專為解決呢個問題而設：上傳 PDF、逐頁勾選、拆出一個獨立新 PDF，而且 100% 純前端運算，文件唔會離開你嘅瀏覽器。
2. 背景與概念解釋
PDF 拆分（PDF Split）係指從一個 PDF 文件中選取特定頁面，提取並組合成一個新嘅 PDF 文件。呢個功能喺日常工作中非常有用：例如合約只需要簽名頁、報告只需要某個章節、銀行月結單只需要特定月份、學術論文只需要引用部分。
傳統拆分方法通常使用 Adobe Acrobat Pro 等付費軟件嘅「提取頁面」功能，或者將文件上傳到第三方網站處理。前者成本高，後者有數據外洩風險。我哋嘅工具採用 PDF-lib 技術，所有拆分操作喺你嘅瀏覽器內完成，檔案由頭到尾都唔會離開你嘅裝置。
3. 實際應用場景
- 合約簽名頁提取：從多頁合約中只提取簽名頁，方便傳送俾客戶簽署。
- 報告章節節錄：從年度報告中只提取某個章節或部門部分，發送俾相關同事。
- 文件整理與歸檔：從大型 PDF 文件中拆分出需要嘅頁面，節省儲存空間。
4. 使用步驟
- 上傳 PDF 檔案：點擊或拖曳上傳你想拆分嘅 PDF 檔案。
- 揀選頁面：逐頁勾選你想要提取嘅頁面，或使用「全選」、「取消全選」、「單數頁」、「雙數頁」快速選擇。
- 確認已揀選頁數：頂部會顯示已揀選嘅頁數，確保選擇正確。
- 下載拆分後 PDF：點擊「下載已揀選頁面」，即可取得只包含所選頁面嘅新 PDF。
5. 與其他方法比較
| 比較項目 |
本站前端工具 |
Adobe Acrobat Pro |
其他線上工具 |
| 使用成本 |
完全免費 |
昂貴訂閱（~$20/月） |
免費但有廣告或限制 |
| 數據私隱 |
100% 本地處理 |
需上傳雲端 |
低（需上傳伺服器） |
| 逐頁勾選 |
✅ 支援 |
✅ 支援 |
❌ 通常只支援頁碼範圍 |
| 快速選擇 |
✅ 全選/取消/單數/雙數 |
✅ 支援 |
❌ 通常不支援 |
| 操作時間 |
數秒 |
數秒 |
數秒 |
6. 個人經驗與觀點
「之前有次要將一份 50 頁合約入面嘅簽名頁抽出嚟俾客戶簽署，如果逐頁 Print 再 Scan 返，搞嚟搞去要半個鐘。後來用咗呢個 PDF 拆分工具，上傳之後直接勾選簽名頁嘅頁碼，10 秒就拆出一個得兩頁嘅 PDF。對於成日要處理文件嘅人嚟講，呢個工具真係幫到手。」
7. 總結與試用呼籲 (CTA)
Free PDF Split Guide: Extract Specific Pages from a PDF
1. Introduction
Have you ever received a long PDF file but only needed a few pages from it? For example, only the signature page from a contract, a specific chapter from a report, or a particular month from a bank statement. Traditional methods involve printing and scanning or using expensive software—both time-consuming and inconvenient. Our free online PDF split tool solves this problem: upload a PDF, select pages individually, and extract them into a new PDF—all with 100% client-side processing.
2. Background & Technical Concept
PDF splitting involves selecting specific pages from a PDF document and extracting them into a new PDF file. This is a common task: extracting signature pages from contracts, specific chapters from reports, or particular months from bank statements.
Traditional methods often require paid software like Adobe Acrobat Pro's "extract pages" feature or uploading files to third-party websites—the former is expensive, the latter poses privacy risks. Our tool leverages PDF-lib technology—all splitting happens locally in your browser, and your files never leave your device.
3. Real-World Application Scenarios
- Contract Signature Page Extraction: Extract only the signature page from a multi-page contract for easy client signing.
- Report Chapter Extraction: Extract specific chapters or sections from annual reports for relevant colleagues.
- Document Organization & Archiving: Extract needed pages from large PDF files to save storage space.
4. Step-by-Step Usage Guide
- Upload PDF File: Click or drag-and-drop the PDF you want to split.
- Select Pages: Check individual pages to extract, or use quick selection options: "Select All," "Deselect All," "Odd Pages," or "Even Pages."
- Confirm Selection: Review the selected page count displayed at the top.
- Download Extracted PDF: Click "Download Selected Pages" to get a new PDF containing only your selected pages.
5. Comparison with Alternative Solutions
| Feature |
Client-Side Tool (Us) |
Adobe Acrobat Pro |
Other Online Tools |
| Cost |
100% Free |
~$20/month |
Freemium / Ads |
| Privacy |
100% Local Processing |
Cloud Upload Required |
Low (Server Upload) |
| Individual Page Selection |
✅ Supported |
✅ Supported |
❌ Usually Range Only |
| Quick Selection |
✅ Select All/Odd/Even |
✅ Supported |
❌ Usually Not |
| Time to Complete |
Seconds |
Seconds |
Seconds |
6. Personal Insights & Expert Advice
"I once needed to extract the signature pages from a 50-page contract for client signing. Printing and scanning would have taken 30 minutes. Then I used this PDF split tool—uploaded the PDF, checked the signature page numbers, and 10 seconds later I had a new PDF with just two pages. For anyone who handles documents regularly, this tool is a lifesaver."
7. Conclusion & CTA