✂️ Quick Summary: Splitting a PDF is the reverse of merging — instead of combining files, you are separating them. This is useful when you have received a large PDF and only need certain pages, or when you want to extract chapters from a book or sections from a report.
When Should You Split a PDF?
Common use cases include extracting a single page to share without exposing the whole document, splitting a large manual into chapters for easier navigation, separating an invoice from an attached contract, and creating individual certificates from a batch PDF.
How to Split a PDF with PDFFlow
Navigate to the Split PDF tool. Upload your PDF file. Choose your split mode: split every page into separate files, extract a specific page range (e.g., 1-5, 8, 10-15), or split by file size. Click Split PDF. Download individual files or a ZIP archive containing all split files.
Understanding Page Ranges
Page range notation is flexible. "1-5" extracts pages 1 through 5. "1,3,5" extracts those specific pages. "1-3,8-10" extracts pages 1-3 and 8-10 as a combined file. Most tools support combinations of these formats.
Split by File Size
When you need to email a large PDF that exceeds attachment limits, splitting by file size is the most practical option. Set a maximum size (e.g., 5MB), and the tool will split the PDF into chunks that each fit within that limit.
Maintaining Quality After Splitting
Splitting a PDF does not affect quality — it is simply extracting pages. The resolution, fonts, and images remain identical to the original. The only thing that changes is the page selection.
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