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PDF Merger

Merge multiple PDF files into one document in your browser. Reorder pages, combine files locally, and download the result - no upload or account required.

Upload PDFs

Drop two or more PDF files to combine (max 20).

Drop PDFs here or click to browse

Supports application/pdf - select multiple files at once

No PDFs selected

Add at least two PDF files, then merge them into one document.

Was PDF Merger helpful?

Stored locally for now - helps us improve this tool.

Why people trust ToolMint

Free utilities designed for privacy, speed, and everyday reliability.

  • 100% Free

    Core tools stay free with no paywall to unlock basics.

  • No Registration Required

    Open a tool and start immediately - no account needed.

  • Privacy First

    We avoid unnecessary collection and keep processing local when possible.

  • Browser Processing

    Most tools run in your browser so your input never needs a server round-trip.

  • Fast & Secure

    HTTPS everywhere with instant, client-side results for everyday tasks.

  • Mobile Friendly

    Layouts and controls are built for phones, tablets, and desktops.

  • Updated Regularly

    Tools and content are improved continuously as the platform grows.

Tool statistics

Local visit data for this browser only.

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Category
PDF
Version
1.0.0

Key Features

  • Combine multiple PDFs

    Drop two or more PDF files and merge them into a single downloadable document.

  • Reorder before merging

    Move files up or down so pages appear in the exact order you need.

  • Private & local

    Merging runs entirely in your browser with pdf-lib - files never leave your device.

How to Use

  1. 1

    Add PDF files

    Drop PDFs or browse to select multiple files. You can add more until you are ready.

  2. 2

    Reorder if needed

    Use the up and down controls to set merge order. Remove any file you do not want included.

  3. 3

    Merge and download

    Click Merge PDFs, review page and size stats, then download the combined file.

Use Cases

  • Assembling a single email attachment

    Combine a cover letter, signed agreement, and supporting documents into one PDF instead of sending several separate files.

  • Consolidating multi-part scanned forms

    Join individually scanned pages of a multi-part form into one ordered PDF ready to submit.

  • Building a complete reading packet

    Merge separate chapter or handout PDFs into a single document for easier printing and distribution.

  • Combining invoices or statements

    Merge several monthly invoice or statement PDFs into one file for recordkeeping or a single accounting submission.

Examples

Pack a contract set

Combine a cover letter, signed agreement, and appendix into one attachment.

cover.pdf + agreement.pdf + appendix.pdf
merged.pdf (all pages in that order)

Join scanned chapters

Merge chapter PDFs for a single reading packet.

chapter-1.pdf, chapter-2.pdf, chapter-3.pdf
One PDF with pages from every chapter

Benefits

  • No account or upload required
  • Works offline after the page loads
  • Keeps merge order under your control
  • Fast enough for everyday office PDFs

Best Practices

  • Confirm file order before merging - the list order becomes the page order.
  • Prefer original PDFs over heavily compressed scans when print quality matters.
  • Keep each file under the size limit so browser memory stays comfortable.

Common Mistakes

  • Uploading images or Word docs instead of PDF files.
  • Merging password-protected PDFs without unlocking them first.
  • Assuming the tool repairs corrupted PDFs - invalid files will fail to load.

Privacy Notice

All merging runs in your browser. PDF files are never uploaded to ToolMint servers.

About This Tool

What is this tool?

A PDF Merger combines multiple PDF documents into one file while preserving page content and letting you choose the merge order.

Why use it?

Use it to build complete packets, submit multi-part forms as one attachment, or consolidate scans without installing desktop software.

Limitations

This tool does not unlock encrypted PDFs, OCR text, reorder individual pages inside a file, or compress documents after merging.

Frequently Asked Questions

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