Merge Multiple PDF Files Local Free

Merge PDFs in seconds. All processing happens locally - your files never leave your device.

Why Merge PDFs?

Merging PDFs is essential for organizing documents, creating reports, and combining materials. Instead of managing dozens of separate files, merge them into a single, organized document.

Our local merger ensures your documents stay private while combining them into one cohesive file.

Step-by-Step: How to Merge PDFs

1. Upload PDF files — Select multiple files or drag and drop them
2. Reorder files — Drag to arrange pages in your preferred order
3. Preview merge — Check the combined document preview
4. Merge files — Click merge to combine into single PDF
5. Download result — Save your merged PDF to your device

PDF Merge Features

• Combine unlimited files
• Drag-and-drop reordering
• Preview before merging
• Bookmarks preserved
• Links maintained

Merge Tools Comparison

Common Merge Scenarios

PDF merging solves many real-world needs:

• Contract packages — Combine terms, conditions, and exhibits
• Reports — Merge chapters into complete documents
• Invoices — Combine monthly invoices
• Presentations — Merge slides into handouts

"I merged 47 PDF invoices into one file in seconds. The drag-and-drop reordering made organizing so easy. Highly recommended!"

Code for PDF merger:

// Merge multiple PDFs locally
const mergedPdf = await PDFLib.createDocument();
const files = [file1, file2, file3];

for (const file of files) {
  const doc = await PDFLib.load(file);
  const pages = doc.getPages();
  
  for (const page of pages) {
    const [copiedPage] = mergedPdf.copyPages(doc, [page]);
    mergedPdf.addPage(copiedPage);
  }
}

await mergedPdf.save();