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Cách Chia PDF: Theo Trang, Kích Thước hoặc Bookmark (Hướng Dẫn Toàn Diện)

Học tất cả cách chia file PDF - trích xuất trang cụ thể, chia thành các phần bằng nhau hoặc tách theo bookmark. Phương pháp miễn phí và hướng dẫn từng bước.

Xuất bản 26 tháng 1, 2026

Why Split a PDF?

There are many reasons you might need to divide a PDF into smaller files:

  • Extract specific pages: Pull out just the pages you need to share
  • Reduce file size: Split large documents to meet email attachment limits
  • Organize content: Separate chapters or sections into individual files
  • Remove unwanted pages: Isolate the content you want to keep
  • Distribute selectively: Share different sections with different people

Method 1: Split by Page Numbers

The most common way to split PDFs is by specifying which pages you want:

  1. Go to our Split PDF tool
  2. Upload your PDF document
  3. Enter the page numbers or ranges you want to extract (e.g., "1-5, 8, 12-15")
  4. Click Split and download your extracted pages

Page Number Examples

  • "1-5": Extract pages 1 through 5
  • "3, 7, 12": Extract only pages 3, 7, and 12
  • "1-3, 8-10": Extract pages 1-3 and 8-10
  • "5-end": Extract from page 5 to the last page

Method 2: Split Into Equal Parts

Divide a document into sections of equal length:

  • Split every N pages: Create a new file every 5, 10, or 20 pages
  • Split into N parts: Divide into exactly 2, 3, or 4 equal sections

This is useful for:

  • Breaking up large manuals into chapters
  • Creating multiple handouts from a single document
  • Distributing work among team members

Method 3: Extract Single Pages

Sometimes you just need one page from a large document:

  1. Upload your PDF
  2. Enter a single page number (e.g., "7")
  3. Download the extracted page

Perfect for extracting a specific form, certificate, or page to share.

Method 4: Remove Pages (Inverse Split)

Instead of extracting pages, you can remove specific pages and keep the rest. This is the opposite approach:

  • Split: "Give me pages 1-5" → You get pages 1-5
  • Remove: "Remove pages 6-10" → You get everything except pages 6-10

Tips for Efficient Splitting

Before You Split

  1. Check page count: Know how many pages your document has
  2. Identify content: Scroll through to find where chapters or sections begin
  3. Note page numbers: Write down which pages contain what content

After You Split

  1. Rename files: Give extracted files meaningful names
  2. Verify content: Open each file to confirm you got the right pages
  3. Consider merging: Use Merge PDF if you need to recombine files later

Common Use Cases

Academic

  • Extract specific chapters from textbooks
  • Separate assignment sheets from answer keys
  • Pull out readings for different class sessions

Business

  • Extract pages for different departments
  • Separate invoices from a batch PDF
  • Create individual proposals from a master document

Personal

  • Extract recipes from a cookbook PDF
  • Separate tax documents by year
  • Pull out specific photos from a PDF album

File Size Considerations

Splitting a PDF doesn't always reduce file size proportionally. A 10-page extract from a 100-page document won't necessarily be 10% of the original size because:

  • Fonts and resources may be embedded in each split file
  • High-resolution images on extracted pages retain their full size

For smaller files, use Compress PDF after splitting.

Công Cụ Được Đề Xuất

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