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PDF Merge & Split Tool

Combine multiple PDF documents into one or split multi-page PDFs into separate files. 100% private in-browser tool.

Drop PDF files here or tap to select

Select multiple PDF documents to merge or split.

How to Merge & Split PDF Documents Online

Working with multiple PDF files can be frustrating when you need to combine reports, extract specific pages, or reorganize documents. MultiTools PDF Merge & Split tool lets you do all of this directly in your browser without uploading files to any server. Whether you are a student combining lecture notes, a professional merging contracts, or an administrator organizing invoices, this tool handles it all privately and instantly.

Step-by-Step Guide

  1. Upload your PDFs: Drag and drop one or more PDF files into the drop zone above, or tap to select files from your device.
  2. Choose your mode: Select "Merge PDFs" to combine all uploaded files into one document, or "Split Pages" to extract individual pages from a multi-page PDF.
  3. Process: Click the "Process PDFs" button and wait a few seconds while your browser processes the files locally.
  4. Download: Once processing is complete, click the download button to save your merged or split PDF files.

Key Features

  • Merge Multiple PDFs: Combine two or more PDF documents into a single file in the order you prefer.
  • Split Pages: Extract individual pages from a large PDF and download them as separate files.
  • 100% Private: All processing happens in your browser using pdf-lib. Your files are never uploaded to any server.
  • No File Size Limits: Process PDFs of any size without restrictions or daily usage caps.
  • Works Offline: Once the page loads, the tool works even without an internet connection.

Frequently Asked Questions

Is my PDF data kept private?

Absolutely. MultiTools uses pdf-lib, a client-side JavaScript library, to process your PDF files entirely within your browser. Your documents are never uploaded, stored, or accessed by any server.

Can I merge more than two PDFs at once?

Yes! You can upload as many PDF files as you need and merge them all into a single document in one step.

Does splitting a PDF reduce its quality?

No. The split operation extracts pages without re-encoding or compressing them, so the original quality is preserved perfectly.

What is the maximum file size?

Since all processing happens locally in your browser, the only limit is your device's available memory. Large PDFs (100+ MB) may take slightly longer to process.

Common Use Cases

PDF merge and split tools are essential for many everyday tasks. Students use them to combine lecture slides from multiple sources into a single study guide. Business professionals merge contracts and proposals before sending them to clients. Legal teams split large case files into individual documents for different team members. Government agencies combine forms and certificates into organized submissions. The possibilities are endless, and with MultiTools, you can do it all without compromising your document security.