Split PDF Utility

The splitPDF function allows you to slice an existing PDF document into multiple files based on page range instructions.

API Signature

function splitPDF(
  file: File | Blob | ArrayBuffer | Uint8Array,
  pageRanges: string
): Promise<Uint8Array[]>

Parameters

• file: The input PDF file or buffer.
• pageRanges: A comma-separated string containing ranges (e.g. "1-3, 5, 7-10"). Note that page numbers are 1-indexed.

Code Example

import { splitPDF } from "@manojcoder/pdf-utils";

async function performSplit(file: File) {
  // Define target splits
  const ranges = "1-2, 4-5"; // Slices pages 1 to 2, and pages 4 to 5
  
  try {
    const documents: Uint8Array[] = await splitPDF(file, ranges);
    
    // Process the split documents
    documents.forEach((bytes, index) => {
      const blob = new Blob([bytes], { type: "application/pdf" });
      const url = URL.createObjectURL(blob);
      console.log(`Document segment ${index + 1} ready at: ${url}`);
    });
  } catch (error) {
    console.error("Splitting failed:", error);
  }
}